I had the dreaded flywheel key issue with my father in laws combo 19 Masport with the bar blade. Its cut is much courser than the Victa Mustang GTS. I get the impression that Rover using a 4 blade cutting disc evened up any power disadvantage the 3/3.5hp B&S engines had against the Victa 2 strokes. 4 hp and above even money bet
