New is always good...
It seems like NO well-known trainers advocate the support-hand-forward or index-finger-forward firing grip anymore, so I wonder why gunmakers still design trigger guards for this
Teachers teach and doers do. Some of the best shooters, martial arts folks, and others don't do what most teachers teach, they adapt and do what works! Tubs won more across the course matches than anyone else and was the first to canter his rifle, against the core of the Marine Corps training, etc. Bruce Lee completely went off track in regard to doing what past masters were training. The above things are still practiced by some of us old school folks, and for good reasons. You see trainers on TV who teach more posing and their lingo terms for it, because that is this teachers do, develop their own techniques and language to give themselves merit, some are good, some are not. Any pose that slows one down, in shooting or in martial arts is a killer. By the time you pose you are already hit or shot by your opponent but, their followers will stand in front of a mirror playing the "Imitation Games" than time at the range actually shooting!
Don't judge old things because someone has thought up something new, like folks who train in a machine and on a screen, such as the new Shoot or Don't Shoot machines, but have never been hit or felt a muzzle blast, or real fear where you are operating on fight or flight instincts. NEW isn't always good.
Choice is good...
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