Fidelity as accuracy to a tube amp means dick to me. My guitar has three extra low strings and active pickups, it’s not even the same instrument as a Strat or a Les Paul. Boss X amps sound like nothing real but they do a killer job with what I’m putting through them. That’s all that matters to me. I struggled all the time with “realistic” amp modeling in the Helix and plugins because I stupidly want to play a dumb extended range instrument and nobody (so far) is building or modeling amps made to make A0 sound like a guitar. I really like tools that are looking for new ways to get there versus absolutely nailing the old ways .