>>10168579I'll answer your questions straight.
1. Yes the same parts are winning all the time until a meta shift.
It remains to be seen if shifts will continue after burst concludes. So either the meta will stop shifting and you don't have to chase new buys or players develop it and you'll want to keep up with the social brain solving the meta.
2. Not always.
That test is time-sensitive (see answer 1). If there's time lag for a release or uptake between the east & west, you'll have different results than if you waited 2 more weeks to test.
In all Burst waves, a new release is the primary driver of the meta. The new parts either become necessary and unilaterally replace a previously required part or it fails so do so and the current part remains supreme. Due to the 1-copy rule, a new part can be effectively the same as an old, which is not the same as "diversity" in the sense that a new player expects.
For a long time even into GT, Perfect Phoenix from Cho-Z was still the layer to beat for long spin times because nothing new could replace it. That meta also heavily relied on Xtreme' driver for fast+aggressive combos which is still required today for those types. But today, aggressive beys cannot create enough counter-spin to burst opponents; nor transfer enough translation force to knock opponents out of the pockets. This is due to extreme weight increases. So Xtreme' is "required" for aggression but outmoded in general. Likewise Phoenix isn't heavy enough to use now.
The below "Wind" layer is currently necessary and will likely stay that way when Burst ends. You should be reading Beybase (ignore the promotions) and looking for tournament reports and tests. They have some comprehensive info on Beyblade in English.
https://beybase.com/b-202-wind-knight-beyblade-review/To sum up, you do need (thing) and you should not play eclectic personal preferences if you are serious. Anyone telling you otherwise doesn't respect you or the actual game as it exists in reality.
