Yeh this I think is ultimately my issue, at the moment each time I do a G5 FSD I just do a couple of rolls and live with what I get (Directly. At G5). They are not perfect or god rolls. It's going to be a lot more tortuous to do this in the future on new ships. There must be a compromise middle ground to say keep the upgrade path but less rolls per grade.
There were a few ships I cared about a ton, mainly my conda and asp, but combat ships etc just were going ti take what they got - heck, even my conda got that treatment to a degree (only 5 rolls on it, pretty happy as well).
The most annoying ones will probably be sensors, life support, weapons (simply due to their sheere quantity of possibilities), limpets, fuel scoops, hrps and shield boosters to a degree, even thrusters, shield generators and power distributors for the most part. A few exceptions here and there (racers, my ultimate combat dedicated ship - though only weapons would be maxed there, since the rest is good even at 80-90%+, and weapons at 95%+). So, uhm, I guess pretty much all my upgrades lol.
Honestly though, for the most part, this is a step down, but I ironically don’t hate the new system that much tbh. Mostly because I just hated the slot machine effects that flippin much.
TL;DR: The changes are all in all an improvement, but with a few tweaks to cater to the more casual engineering crowd these changes could easily be amazing.