Those were the first thing I thought of, too. I have a pair of the 115 cm that I've used a couple of times, and I really like them - except that they're about 5cm short. I may try a set of the 125s, if I can find them.

I was worried that they might buckle under stress, or come apart (come un-connected, not break) if I got them stuck in a crack, but no such issues so far - and, yes, I have done both.