Serious feedback, no knee jerk. Mostly for FDev's eyes/ears.
Sub surface LTD was obviously paying way too much. No harm at all in nerfing it. I've felt similarly about past nerfs, but we'll get there in a minute.
I was in the bubble, cleaning up the mess left by the BGS bug that saw several of our systems get way out of balance. I decided to take a cruise out here to COL 285 to take a look at the changes in mining.
Dropped into the center of the middle hotspot, which is overlapped by two others, so should be the highest yield in the game according to this post. Took me 14 minutes and 30 prospectors to find my ONE asteroid with a sub surface LTD deposit. By comparison last week I was only carrying 110 limpets per run and I was dumping 10-30 of them. (282t total for me).
So I started working on my first deposit and RIGHT AWAY I have a chunk spawn under the surface of the asteroid (which you claimed to have fixed) and there goes all of my collector limpets. I started with 210(brought extra because of the changes) and now I'm down to 151 between the 30 I spent prospecting and then all that got killed while trying to collect the 15t of LTD that I got out of this rock. 59 TONS of limpets to get 15t of LTD. (I run 9 limpets at a time for reference).
I agree that some balance needed to happen, but this doesn't feel very good. First FDev, you NEED to fix the bugs. Limpets getting killed because I do something stupid is great gameplay. Limpets getting killed because YOU did something stupid is awful. Stop chunks from spawning under the surface of asteroids. Also you need to figure out a way for me to find sub surface deposits without spending dozens and dozens of limpets. I don't mind some gameplay behind finding them, but using the pulse scanner and finding no LTD with my prospectors isn't rewarding.
The sub surface mining, and core mining, are both awesome. Really good refinements to the mining system, I don't think you get enough credit for refreshing mining and making it way better. The exploration enhancements are also fantastic, but I won't get too deep into that. Refinements like that would be appreciated all across the game. However, these new mini-games take time and skill and often the rewards are not properly balanced. Note that I'm not talking about the credits per hour. I'm saying when you put the time and energy into making these fun activities, and then I choose to go laser mining because it's more efficient, that's a problem. Last week was awesome because I like the sub surface missiles AND I was getting more LTD than my friends who were laser mining at the time. Core mining is another area where I spend a lot of time placing charges, watching the boom, and then all my limpets die. I mean, that's part of the equation in my head... It goes like this "OOOh core, I like the boom. But I'll only get 20t of LTD and I'll lose at least 10 limpets, maybe more. I don't have all that many limpets left, and it'll take 5-10 minutes... But the boom is cool......... Hmmmm. Na, I'll skip it." I don't think you want players having that thought pattern.
Throughout the history of the game I haven't observed many "balance passes" that were subtle and successful IMO. Sothis long haul poop was my first gold rush in 2016. When the nerf bat finally came it no longer made sense to do those missions AT ALL. So it wasn't a gentle balance pass, it destroyed that passtime. When I got good enough at combat I found my way to 17 Draconis and massacre mission stacking. I was late for skimmers, and that was probably an "exploit" in the correct way that word should be used. You made several changes up there and now, 17 Draconis is no longer a thing. I don't have it bookmarked, I don't check its state, I can't tell you the last time I was there. Planetary Scan Jobs in Quince, stacking and scanning one point for 20 missions was obviously not working as intended. But when the nerf bat came out there it also destroyed Quince. That system means nothing now. I think stacking 20 missions and flying to 20 different buildings to scan would have been an acceptable fix, but that isn't the fix that we got. We got separate buildings AND we could only take 3 at once. I say this in hopes that you can re-evaluate how you do balancing. Maybe swing the nerf bat just a little less forcefully. Keep these activities relevant while bringing their income more in line with what your vision for the game is.
I'm likely going back to laser mining for LTD. Which is what really drove me to type this up. I like the sub surface missiles, a lot. I wish the game would reward me for the time and skill it takes to use them. And PLEASE stop chunks from spawning inside the asteroid and killing all of my limpets. OR maybe it's easier to make the limpets a little smarter so they don't suicide themselves by trying to get chunks that they can't reach, that's fine too.
Thanks for your time.