I recently bought a SUPER73 S2 second hand and the previous owner modified the power output from 250w to 350w but it still cuts out at 15.5mph. I would like to keep it as he told me it helped him up hills which my town is full of but I'm worried getting stopped and the bike seized because it outputs more than the law allows, I was wondering if anyone got stopped and how the police checked the ebike? Would I be able to get away with 350w or is it obvious for them to tell and should I revert it back?