You guys are not fishing floats right if you are waiting for the bobber to go down. Nine (9) times out of 10 the bobber just moves or you feel the fish take and the bobber never goes down. I don't think the type of float really matters as long as you have just enough buoyancy(sic) to float your lead or shot. The funny thing about you americans is you always try to fine tune everything instead of trying to keep it simple.