Originally Posted by nismomike

I use the carbon top plate on my SC10 and B4.1. I had a couple of bottom bolts back out on my SC10 with the stock plastic top plate. The carbon top plate really grabs the bolts tight and they dont ever back out. The holes dont strip after a few rebuilds. Might not be as much an issue with the lighter B4.1, but I switched both and they are great. As far as a tuning option, I dont know if their is any benefit or draw-back. I dont use the carbon U-brace and have not tried it so not sure on that one.