I can't see those catching on either, walls aren't going to be too keen on anything that will increase the number of dropped items.
oh I see they have a loop of loose cord hanging off them. Even better How to you use undercuts? or pockets? or hold bigger than the diameter of the loop holds?I still can't see these catching on and unless you're into Winter/Mixed I can't see the point whatsoever. If I see Patxi using them I'm in, until then I'm out.
I think if I keep using these my endurance on the wall is going to rocket because you have to look for you next hold and think a lot more.
Schmoolz are to be used to have fun, train strength and simulate dry tooling. Try some and I think you will like them.
I bought a pair of hand grip trainer things from tesco. What is a good way to train with these ? lots of reps, long holds or both ?