Hey T-jet, I have some of the upgrades you mentioned on my Fx470e and questions about others.
How has the cam chain tensioner been modified? A longer plunger will cause the chain to grind away at the inner cases, unless you grind that area in advance, which means thinner material... Not recommended by some.
The rocker arms. I know the rollers wear quickly, but are the arms also upgraded?
I have the high output battery but stock starter motor and sprag gear. You must kick start a cold bike. Have the motor and sprag been changed? Many on this site achieved good and bad results by changing thier sprag gears, it's a lot to spend just to see if it works better.
The dual bearing counterbalancer upgrade is over 400$ just for the parts, a lot to spend if it ain't broke, I just replaced the stock bearing as a preventative measure. Mr. Lineaweaver recommends removal and rebalance as the ultimate fix.
Thanks for your time. Eric