I play in drop B tuning (B f# b e) and I'm currently playing with a D'Addario 5 string set, (on a 4 string, just using the 4 fattest strings) 45 to 135. The only problem I'm having is that I'm getting too much fret buzz. I've set up my bass well and can't seem to eliminate it. Obviously this is happening because of such heavy gauge strings, so I'm thinking about switching to lighter strings. I am playing a Fender Jazz Geddy Lee (34" scale length). My biggest concern is losing tension. I haven't had a ton of experience messing around with different types of strings so I'm trying to figure out which would best do the job I need it to do. Any suggestions? Help would be much appreciated.