cam locking tool for 2v

[jerry]

I have the laser cam pulley nut removal tool ,, usually i lock the engine using gears and brakes to remove the cam pulley nuts ,, and same when torquing them back on ,, but im wondering if some form of locking tool might be better as a couple of times i have torn belts when torquing to 65nm ,, I see laser sells some kind of locking pegs with 5mm threads but for the life of me I cant see how they would work on a 750 monster

any thoughts or alternatives ??