I just finished setting up my rg550 and after reading Rich's guide.. seems like I play in a super high action zone.
Here I thought my action was as low as I could get it with out buzzing but Rich says 2mm at 24th fret is already high.
I'm sitting at 3.5 mm lol.
My relief is also about 1, maybe 1.5 mm at the 9th fret, and that's what he recommends for 24th as action height. I couldn't imagine that kind of set up. Must be amazing.