Micropteris- The bass sound like they are feeding like trout-catching what drifts to them and not chasing. I've seen this during the shrimp and worm hatches. Last nite I ran into a worm hatch but there were also sandeels and p'bunker in the mix, and probably some shrimp. With this smorgasbord what chance does one have with a fly that rresembles the prey. I ended up trying an eel pattern and managed a couple of mid 20" fish but the catching was tough. You might try fishing with droppers like I do and give the fish the final say in what they are looking for.Check Ken Abrames' site :Stripermoon.com for some ideas that might help. Ron