Anyone used a McLeod RST Twin Disc dual clutch set up?

im know of TST some of the pioneers of cummins diesel performance. Im aware of the twins being diffrent, a diesel pulling truck you're not shifting gears let alone trying to shift quickly. Slowing down 2 discs's (even though there most the time smaller in dia. then stock single disc) its alot more load on the single brass syncro blocker ring than a single disc. Now had the back to back pressure plates not been poorly made to begin with it may have been diffrent on take off. But shifting at high rpm (5000+) a single is alot easyer on the syncro's. Not to mention unsprung hubs are definitely harder on input shafts. But its a give and take with both of them.