okay so maybe this is a dumb question but i picked up a prebuilt BNF quad, not gonna say which one yet because i dont want this to turn into a brand thing, and the tune on it is just... not great. rolls feel kinda mushy and theres this weird propwash on fast direction changes that i cant seem to dial out even after messing with the D term for a few hours.

my question is basically are prebuilts always like this or did i just get unlucky. i kinda assumed BNF meant someone had already done the hard work and it would at least be in the ballpark of a good tune. my homebuilt stuff doesnt fly like this and i built that from scratch with a filter stack and everything. starting to feel like i paid for the convenience and got the worst of both worlds lol

running betaflight 4.4 btw and havent touched RPM filter settings yet, maybe thats part of it

yeah this is basically the dirty secret of prebuilts. the tune that ships on most of them is conservative at best, liability-driven at worst. manufacturers tune for average conditions and average pilots and average props which means it works for nobody in particular. RPM filter is huge, make sure its actually enabled and configured for your motor KV, a lot of stock configs have it half-setup or the motor pole count is wrong which just kills performance.

also what does your blackbox look like on those propwash moments, if you have logging enabled. hard to say anything useful without seeing the gyro traces but id bet your D is actually already high enough and the issue is somewhere in the filtering chain or your P is just too low relative to D. propwash is almost never solved by just adding D, usually need to look at the whole picture.

honestly i had the same feeling when i got my first prebuilt. ended up just flashing a fresh betaflight and loading a community preset for my motor combo and that fixed like 80% of it. the stock firmware configs on some of these are just weird, like they modified stuff they shouldnt have touched. starting fresh sounds scary but its less work than trying to debug someone elses half-broken tune from scratch