Anyone running RedLine's MTL in their T56? I thought about trying some in my next change. I've basically been running Royal Purple Synchromax in my various T56s for a decade w/o much issue. great for the street car. I've been having a slight increase in shift effort lately (maybe its because i'm used to the MT82 now adays), and with the summer season coming along w/ high heat of a track car I thought about trying something a bit thicker.
I know *some* people claim issues w/ carbon fiber blocker rings. I rebuilt the trans a number of years ago and have no clue what synchro rebuild kit I used... probably not carbon fiber but not sure.

any issues?