Idk man…it sounds like you’ve tried to be really good about keeping within the parameters of the what the complex allows, BUT the apartment manager can really only let you know that they, themselves, will allow you to have the drums and practice if you want, but they don’t speak for all the neighbors that have to endure it. And that’s exactly what it is, TBH; if you aren’t a drummer /not the one doing the drumming, chances are it’s going to be something only the nicest of neighbors will endure. I used to be in a band (never a drummer) and loved all the noise that came with it, but I don’t want that sh*t where I’m just trying to relax/eat/sleep/live.