Ignore me if you guys think I am not in this league and so I have no right to speak.
However, making and tuning a set is also a task for a league, what's the point you just grab the set from others every race and practice it? One of the interesting points racing in a serious league before a race day is tweaking with the setup. Getting a setup from others may not fit you, learn to tweak by yourself or your team there, fit you guys' own driving style. If it is not fast enough, tweak it more aggressively.