i've been in this southern rock n blues band for about 2 years now. i have been gently moving into a more equal role as far as vocal contribution/ giving my input on tempo/ dynamics/ breaks etc. btw they have been together for about 6 years. the problem: the drummer is very average ( i have been fortunate to play with some relly good ones) and when i try to suggest a slight tempo change ( "just try please") or dynamic basics, the guy has no interest in even trying. he has one volume, loud. we have some festival gigs coming up and i've about had it. anyone had this kind of issue in their experience? any suggestions on how to handle? thanks.