Dave - post 196 of mine suggests Sig EZ hinges. That's what I used, because they are a lot thicker than the Radio South, but in this airplane because of the pre-made slots, you need the thickness.

Starting CG - NOT 7.00". I started there, and it was very nose heavy, needed LOTS and LOTS of down elevator inverted. Others here (tommys, swlarcham) have flown theirs at 7.25" aft of leading edge at the fuse side and report great improvement. That's where I'm setting mine with the ST 2300 for next flights.

Sorry I can't say when that will be - it's 8 degrees, below zero wind chill, and not much change forecast for the weekend.