I have been playing this game since 2017, and I really don't like the fact that the latest update removes the ability for me to micro-upgrade my lower-tier turrets/hulls/etc. I haven't spent a ton of money on this game and I find it severely disappointing that I now need to dump way more crystals in the up-front cost of buying the next MK tier. Please give players the option to micro-upgrade their stuff still, even if they can buy the next MK tier at their current rank. Some of us prefer being able to slowly upgrade our stuff for a lower up-front cost compared to instantly upgrading our stuff for a higher up-front cost. Even if it costs more in the long run, at least let us keep the option to micro-upgrade. I might just quit the game after I discovered the change in today's update. That's how disappointed I am.