Hi, new here! Just picked up my ‘19 Levo Comp Carbon this week. Got a sweet deal from my LBS with it being preowned, decided to spend the extra cash on upgrades. I agreed to £300 (with them buying my Guide RE’s from me) for Shimano XT 4Pots with IceTech discs (Won’t be getting them until they reopen after Covid19) and now I’m wondering how much better they are over the Guide RE’s? Thanks