Are you trying this on track or on the roads? The track is the best place for these fun and games, a far safer environment and you won't get nicked for your troubles either. If you are trying it on track the best thing to do is stop trying, you won't be concentrating on what you should be doing, which is getting round a lap as well as you can (not necessarily as fast as you can) Practice being consistent and hitting your braking and turning markers every time, you'll speed up and getting your knee down will then come naturally. Spending all your time and energy trying to get your knee down will have you riding more slowly, looking like a twat and possibly falling off! If you're trying on the road you're just making yourself a liability - knock it on the head and book a trackday 8-)
