Haha, first time engineering a ship:
Long range, I'll take that!
Faster boot time, I'll take that too!
Lightweight FSD, sign me up!
Oh....each upgrade replaces the previous....
I have an Asp Scout too (don't judge, it's a lot of fun), but I'd probably never use this blueprint.
Reading this thread makes me think some people don't understand that your modules can take up more power than your power plant produces, as long as they aren't all turned on at the same time. For example, you don't need your FSD while fighting, so turn it off, and you have more power to put towards weapons. This is why this upgrade is useful, so that when you stow your weapons, your FSD turns back on faster.
another example of when you equip more modules than you have power for is if you use a smaller sized power plant to keep your heat signature low. I do this on my Icourier, instead of a 4A PP, I have a 3A with the low emissions upgrade. I don't have enough power to run all modules, at the same time, but my ship can stay at 2% heat indefinitely if I turn off my thrusters.
This isn't a stupid upgrade for the FSD, it's for people who understand power management, and how to cram more stuff into your ship.
It's actually really really useful if your ship doesn't have enough power to keep tyour FSD on while in combat, AND, your a crazy person that waits till the last second to escape (I actually sometimes fly ships so low on power, I have to kill verything before my life support runs out, because deploying weapons turns even that off)
Having a faster boot time from when you stow your weapons, to when you can start charging the FSD in these situations is actually quite useful, you can get a few more harrowing seconds of being under fire in, and still escape by the skin of your teeth.
This has nothing to do with that. This is boot up time after being powered down. It has no effect on the time it takes to spool the drive itself.