I have a Signature Odyssey guitar that has the pickups screwed direct into the body......So when I changed out the bridge pup to a C5, I wanted to try it out first so I didn't have to drill out the holes on the baseplate. All I had to do was cram the pup into the cavity in the body, since it was pretty tight it would stay in place. Sounded good. So I mounted it permanently with the screws and little silicone tubes that go on the screws to hold the pickup in place (work the same way springs would). Now all of a sudden the tone lacks highs. Made sure pickup height was the same. So now I changed it out with a Steve's Special. Same thing: Sounds great just jammed in place, but once I mount it permanently with the screws I lose highs and gain mids. What's going on here? The baseplate of the pickup was in contact with the wood when I just had it jammed in place, So how could the tone be affected when I screw it in place? What does screwing the pickup directly into the wood do to the tone compared to mounting it with a pickup ring?