So how come it is perfectly Ok to have a console or a wrist gauge (this thread) but it seems to be not ok to ascend vertically (a different thread)? Aren't they both personal preference and what you are comfortable with?
I guess it depends who you ask. The TEC guy will promote the horizontal ascent position as well as the use of the rear wing deflator. The REC guy will say it doesnt matter and use the inflator hose to deflate their BCD.. Certainly the latter requires less skills, so that will probably be the popular ascent position Among REC divers. Cause and effect is your opinion. Is it important. again depends who you ask. Its hard to do virtical ascents in a confined space like a cave. Maintaining a horizontal trim in a cave probably translates to the same position used for ascent. Again cause and effect???