Re: How best to kick some one out of the band?
tell him that he isn't right for the band that you want to play in? if he actually gets angry because of this then there's something wrong with him. if he's a proper musician then he'll just go and join another band anyway. maybe he already has other bands he can play with that you don't know about? (i didn't read the rest of the thread).
be sincere and say sorry like you mean it.