The worst thing about safety stops is as a previous poster alluded to, and that's when divers "bolt" the last 15ft. to the surface. Sort of negates anything they may have accomplished with the stop.
As for the horizontal/vertical thing, I'd venture to say most divers can't hold their depth within a couple feet through a three minute stop. It can be even worse if they're hanging on an anchor line in surge. Staying put has to far outweigh position.
And deep stops...Why not? Being older and of less than an ideal figure, I'll take any safety advantage I can get. Remember decompression theory is just that, theory.
As for the horizontal/vertical thing, I'd venture to say most divers can't hold their depth within a couple feet through a three minute stop. It can be even worse if they're hanging on an anchor line in surge. Staying put has to far outweigh position.
And deep stops...Why not? Being older and of less than an ideal figure, I'll take any safety advantage I can get. Remember decompression theory is just that, theory.