Like spikes for track shoes, and nailed boots of yore, what goes around comes around! Looks a good idea, though since most soles haven't been designed to take them you'd need to be careful. You certainly wouldn't want them getting pushed through into your foot! Or falling out.
I've done it the other way .. I came down from Carn a' Mhaim along the NNW ridge (in seriously rainy rain iirc) and then just came down the (pathless I think) fall line from about NN990961 (might have been sooner) towards the bridge at Corrour bothy (now replete with stainless steel loos and superduper ecofriendly sanitation), then up Coire Odhar along the good path. Wouldn't try anything more direct - Carn a' Mhaim has some rocky outcops, and the Devils thingumy would be a lot trickier to descend from directly. So in essence I'd come off Devils Point down to the bealach, eat a Mars bar, descend to the bothy and bridge, and use my eyes to look for the easiest way up to the Carn a'Mhaim ridge, by which time the Mars bar will have kicked in, and you just gird your loins and up you go ..