I have no idea what the Maine fish preference might be, but I'll share a couple of wet flies I've had a lot of success with. For brookies my favorite has been the Parmachene Belle - year in and year out it has been a productive wet. A more recent discovery for me has been the Tenkara wet. A friend put me on to this (sent me a couple) and I was amazed at the results! Here's a method of tying one that I have followed and again, has proved successful. Hope this might be some insight ~

https://www.youtube.com/watch?v=HOXiwrN6OJg