Repair limpets and fuel transfer limpets. I think it's pretty obvious what I would use them for. Repairing my own ship, as well as repairing and refueling any other ships that are in the area and require assistance.
In an ealier comment, you pointed out that these limpets are nearly useless for explorers. Fine, call it roleplay or whatever, I don't care - but let me ask you this: Who uses them in populated regions?
The answer is nobody. Nobody uses them in the populated regions of the galaxy because stations are everywhere, and basically all of them have refuel and repair facilities. Only fuel rats and explorers use these limpets, because they are the ones who head out into the black, where there are no stations to refuel or repair at. So if you think I, as an explorer, should not use a feature that was clearly designed with my playstyle in mind, then FDev might as well remove them from the game altogether. But I'd rather they improved the game to make them more useful and flexible, and removing the ridiculous requirement of having a cargo rack (when gun ammunition of the same size does not require one) just so you can fire a single limpet would be a good start.
After all, no real world explorer would carry a huge cargo bay just so they can store a (relatively) small piece of equipment in it. No, they would carry a small cargo bay and fill the left over space with other useful stuff. So an alternative solution would be letting us split optional slots in half to turn them into two smaller slots.
I have nothing more to say, but I would like to know why you're opposed to the idea. How would implementing my original suggestion, or a variation of it, make the game worse?
I think Lestat did very good response to begin with.
If you want to know, I brought both a cargo rack and fuel limpet controller along my travel to Beagle point. I did never expect to use it for anything, I just want to build my ships to be prepared. Now when we got a free slot, I would add a repair limpet controller, just for the same reason. Why did I choose them in this order, role playing purposes, I am more likely to encounter a player that is out of fuel than a player that desperately needs the use of repair limpets.
I also brought along a frame shift wake scanner and a shutdown neutralizer, who knows what you will encounter out there.
I also had weapons, missiles and rail guns. I also had mining laser. I brought a SLF figher and a NPC Pilot along with me. Just because I could. I hauled all this extra crap with me to Beagle point and back. Of course did I have shields, 1000 MJ on an exploitation ship, and still this exploration with all this extra junk did do 71LY. So it is not like I skimped on my jump range for this. So if I can do this, so can others, IF they desire. but they might choose another ship, have different priorities, etc, etc. My shields was tested to to hold for a 5km+ free fall (FA Off) down to Achenar 3, a 6.7 G planet. So if you do not any stupid things, you should now be fine landing on most planets that you find, unless you specifically go out of your way or get very "lucky" in finding a very high G planet.
Also, I find your definitive answer about who uses repair and refuel limpets in the bubble, interesting, since I have regularly used the, both as Lestat does, by actively hunting signal sources where those a required.
I have also used fuel limpets to help new players to move to "our home base", so I fly with them and top them up from time to time, after their learning curve to fuel scoop takes the better of them.
I have also used fuel limpets to help friends move their ships around, and they forgot the fuel scoop or thought they would manage by finding a station to refuel at, etc. The updated C&P have given new options to help friends to get back home in their combat fitted ships.
We have also used repair limpets to actually repair our ships in conflict zones and while bounty hunting. To let us stay longer, but we still have to go back to re-arm.
I do not think FDev had any specific game play in mind when they created these limpet controllers, like exploration, but thought it would be cool and people requested these options, but we do now that FDev DID add in-game reasons to actually use them in populated space! Signal sources!! But I do not assume that they added these options just for players to use them in Signal Sources, but have these as optional game play, to help out, just like Fuel Rats does and me and my friends does. And the likelihood to actually get to use these are in populated space.
And I do not think you option would bring any new game play value to the game, it is about choices, and your only reasoning for this would be to role play, as the likelihood that it would be needed during an exploration scenario are very slim. Why would a random explorer call out to you for help? IF they would call out for anybody for help it is much more likely they would contact the Fuel rats.
So usefulness for Fuel limpets for an explorer out on expedition is nearly zero.
Usefulness for repair limpets are most of the time useless. You can crash into many exclusions zones before you are in danger of breaking the hull. And there have been quite a few tales of CMDRs that have been past Sag A and flown their ships back with very damaged hulls, like 1%. And most of the times, these players was the cause for the near death, like missing to check how many G a planet had that they was landing on, and thus hit the ground way to hard. And there are also alot of stories of CMDRs who did the same mistake ended up on the rebuy screen. So once again, the use of this would be very limited and so unless you plan on crashing onto planets alot, flying reckless, the likely hood to be needing top use repair limpets are slim.