A guy I train with has a 44 katana, hes a 67.5kg lifter LOL he benches 140kg, but could do 160kg in a tight shirt(think 38 fury
).
I think I'll stick with fury/f6 shirts for a while, my 40 fury should last me a few comps I think, although they do tend to get ripped up after a while. I've heard f6 are easier to touch in than fury by a bit too, might get a 40 f6 when my fury is destroyed.