Descent speed -- does it matter?

[Laser]

Apart from the fact that a rapid descent kind of increases the narcosis hit a little, there is a factor that I have found with rapid long descents (greater than 150')
it is called diabatic osteo arthuralgia

It is basically joint pain, caused I believe by an osmotic effect of rapidly increasing nitrogen differentials "sucking" the lubricating fluid out of the joints such as hips, knees and shoulders.

I noticed it for years before I found it documented and it described in the nss cave diving manual. It never really bothered me as it was on descent not ascent, and it goes away after a few minutes at depth. I dont know if it causes any long term effects and havent noticed any.

I can't descend that fast because of my ears, but that is really interesting. First I've heard of it. Thanks.