Prices listed from E610-650. That's 100 euros more for the same size Revolution (117cm), though I think they both come with the reel?. The Revolution range tops out at 124cm whereas the Supreme goes one step larger at 132cm.
I can't find any mentioning anywhere of max pressure allowed in the two guns which could possibly have given a clue as to why they felt they needed to move to 14mm. If my math is correct, they can get the same force on the bigger piston with a 36% lower pressure in the gun.
I know I keep saying it doesn't have a true reversed trigger but the German dealer's sales blurb says it does (the older one). Pete has theorized that it is a normal, though optimized trigger, moved aft a little.
@popgun pete did you ever take yours apart or do you have some pics of the trigger mech?