I love badminton, and I consider people I play with at my club as friends, so I'd like to find ways to clear away a few things which I suspect to be unhonourful as to keep it as enjoyable as possible. I therefore come here to ask a few questions to clear some doubts I have according to rules of the game, but also for practical advice. 2nd Topic: A great deal of the time I play I am playing with one of the shuttles I put in. The reason for this are multiple: (1) On trainings: People either a) put in their shuttles each less often than I do, b) prefer continue playing with shuttles that are overly used rather than putting in a new one, c) sometimes put their fair share of shuttles but of a lower grade than the ones I buy, which thus amount to less relative time playing with them, or, most often, e) A+B+C together (2) In competitions: People are using the wrong speed at least 30% of the time (according to the proper test starting behind the line) so 30% of the time, at the very minimum, mine are used exclusively. The consequence of this is that I very often brush the feathers back on the shuttles before a new serve (so they fly properly without needlessly having to take a new one, most often if my own, when the current shuttle just needs to be brushed back). I know that this can be annoying for some opponents, though I do as fast as I can until the feathers are back into place, but unless I win the lottery I don't know of a rational alternative (playing 2-3x per week and using slightly more than a tube a week on average, my shuttle budget is already >1500€/ year). If an opponent offers to put in a new shuttle of their own as an alternative to me brushing it back I'd be more than happy to accept, but otherwise I'd like to avoid either sacrificing on the quality of play or having to change the shuttles at the minimum 3x more often than I currently do (which would be the minimum required to play with shuttles that fly well without brushing back the feathers on them), and thus spend 4500€/year on shuttles instead or 1500€ (which is a lot already, though I know some people at the club who spend several times more). I'd very much like to be as pleasant of an opponent as possible, but I can't really validate the idea of paying 3000€ per year only for people to think the best about me (which is what it boils down to). What are the rules with respect to this? Am I allowed to brush back the feathers more often than not before serving or before throwing the shuttle back to the opponent (who often don't brush it themselves before serving)? Is it enough that my position clearly shows I am not about to serve or can my opponent rightfully object on this other than by offering to put in a new shuttle (of correct speed, if in the context of a competition)? How do I deal with this slightly frustrating situation in which I am - not always but often: (a) The player or among the 2 players throwing in most shuttle money in that which should be an equally shared expenses, (b) Being made to feel like the annoying guy on the court? I'm fine with either (a) or (b) alone but it's very frustrating to have both at the same time. What is the best way to deal with this?