Well I'm close to 20 stone now so nonladder slips if I foot it . But I'm expensive lol .
We had the original ladder stopper years ago and it was a good device hit and miss on bad wet green moss though but we had ladder spikes on most of our ladders then any way .
Is it for climbing on slippy surface when you work alone ? If it's just for general ladder use get some spikes or non slip feet fitted other wise can't beet a man at the bottom .
We don't do Mutch ladder work now but if it's iffy I alway s foot them or worst case tie them off if poss .
I don't do much ladder work myself tbh. I have a ladder mat and a piece of 3 x 2 timber with three 6" bolts going through that I batter into the ground on grass. my mate told me about the m8rix and I just wondered if it was all it was cracked up to be.