How long does it actually take to "collect data" related to Update 3.8? I mean it has been long enough to figure out that spare parts have broken the game. The creative director (or something like that), Igor Iliketoscrewuprov, is gone. Everyone in the player base hates the spare parts system. Spare parts have made it to where most people can't even play one-fifth of the tanks they own and forget grinding new or buying premium tanks. Even Bushka hates the spare parts system/idea (see his latest video at about 13:50 minute mark, https://youtu.be/F_XjYJRx9ok).
So, Wargaming get off of your fat butts and fix this. You can either:
1) Get rid of spare parts all together and use credits like in the pre-3.8 versions of Blitz
2) Fix the spare parts economy so that they can actually be obtained at a reasonable rate and method.
a) One idea is to allow premium tanks to grind credits and spare parts
b) Under this option, I don't think premium tanks should require spare parts for equipment at tiers 2 and 3.
Oh, and get rid of the [edited]timers!