Capt Jim Wyatt once bubbled...
The original post I made was in search of anyone who has heard that the software is not used by DIR/GUE divers in the manner that GUE sells it
Quick answer: No, GUE trained divers do not run Decoplan profiles directly. Deco is done primarily in your head with Decoplan tables for backup. Those tables are not used as is but are modified using information taught in a GUE tech course. I'm not going to repeat any of that deco information because it needs a very lengthy explanation that I am not qualified to do and SB isn't the right place anyway.
GUE sells Decoplanner to use to play with profiles and generate raw tables. Decoplan is Buhlman w/ gradient factors, which is not exactly the most up to date information available.