ok i recently (as in, today) restrung my UV77BK with 9-42 using a 52 for the low B. Previously I was using 10-52 and a 60 for the low B. The trem angle is great, and the action is nice and low... however i've been noticing a bit of buzzing, on the bass strings. Also, the treble strings are a wee bit to high for my liking. I'm thinking I have to adjust the truss rod. Would I need to put more curvature in the neck or less? Also, last time I tried to adjust the truss rod on my UV, i noticed that when i took the truss cover off there was this weird cap thing preventing me from getting to the actual truss nut itself, any way to get around this? Thanks.