Are you talking about first or second stage?
When they first came out we had a lot of second stage freeze up out on Lake Michigan while diving in the winter. Then, they came out with this little metal sleeve that fit into the second stage. That little bit of metal made all of the difference. Now, you can just order it with that piece in place. THe first stage is really simple. You don't need to add vodka, like with the Posidens, or any oil. You should be able to pick up the kit from any local dive store that carries them.
One thing that I did that helps a LOT was to change my I.P. on the first stage. George and the WKPP guys run theirs down at 120psi instead of 135. THis had made all the differnce in the world. I have not a one single freeflow problem since I did that. Another thing that I have changed is that I no longer use air below 100'. I dive helium which has smaller molocules and makes the regs easier to breath. This is a big reason why the 120psi set points work so well. If your diving in Wazee I imagine that your doing the same.
I plan on heading back up there in a couple of weekends. One of my friends is teaching a deco class, another is teaching a trimix class and I am just planning on freedivng and maybe shoot some fish- my new favorite hobby for a whole two days now!
I think that we are going to have a group of about 20 divers up there. I am hoping that at least 4 of them will be freedivers for a change. Freediving is a lot easier on my back than carrying all of those tanks.:head
Jon