The last bike I raced Enduro on, mods later on saw new Tech M4's and a Marz 55 replacing the dying Marz AM SL Air.
EX721's with Maxxis Minnion 2.5" was the main adaption along with a Hope Ti6 up front due to dislocating the tip of my braking finger and needing a lot of help with the front brake... Droped it into Race 2 despite the injury and finished top half which I was pleased about considering.
For UK Enduro dropped back to 2.35 SP Minions.
Bike weight was gravity suited.
Current (if untested) version
Rides better up and down than the Heckler, would be happy to throw it at the Mega and any UK/euro enduro races. Main changes from the heckler would be everything! Carbon frame, Lighter wheels, Wider (lighter) bars, 2x10 now sporting an e-13 2x device, Lev replaces the I900 and the whole thing comes in around 28-29lb depending on what I do with it.