A small popper like a original pop-r will work about as well as anything, in the Bone color or mostly white in color. I do not think it matters all that much most days, I have found that normally bream will be around the mayflies, and the bass will be eating some mayflies but mostly the small bream and other fish that are after the bugs. The popper does a good job of making the area unsettled and keeping the action going. I throw it in to the area and then instead of popping it I will just twitch it in place for a while and normally the bigger bass will hit it, even though you will catch some big bream doing that too. A feathered hook is almost mandatory for this to work well though.