DA, with all due respect . . . The DIR forum was created as a place where people could come and ask questions about the DIR system, without getting beat up about WHY they were interested (as can and does happen in the open forums on just about any board). The rules of the forum specifically state that it is a place to get DIR answers. Uncle Pug, who I believe was instrumental in creating the forum in the first place, kicked out even DIR-related threads, if they weren't specifically questions about the system, and in his day, non-DIR answers of any sort were simply deleted.
If you come into a forum where the rules say the answers are to be DIR, and you propose a solution which is not accepted in the system, you are quite likely to annoy the people who still see the forum as being supposed to follow the rules.
The system is a highly standardized one, because standardization brings some significant strengths to any system. But it is neither completely rigid nor fossilized, as the people who teach it are actively engaged in exploration and research diving, and they change things when they see something better. But I have found, in the three and a half years I've been diving this way, that many of the things I have chafed against have eventually proven, in everyday diving, to have good reasons behind them.
I have never understood the people who want to argue passionately for doing something some other way, in the DIR forum. The people there have generally chosen the system because standardization doesn't irritate them and they like the benefits it brings. People who don't like the standardization are free to make any changes in any area, be it gear, mixes or procedures, and dive as they please. It's not DIR, though, and shouldn't be proposed as a solution in the DIR forum.