Frito

I guess iron sight as a backup in case optics goes out. But more I shoot more I agree with you that in near distance the index plus any slide outfit would do just fine.

Thanks for the confirmation. The way I learned gripping is never press force with the supporting hand thumb, just softly land it on the frame as it may affect the muzzle. Therefore I'm quite puzzled seeing many mod made a thumb rest even in open gun, allegedly mitigating recoil. On the other hand, the co-wit iron sight would be fine with CO, correct?

Can you disclose how heavy your trigger is? I believe that makes the difference whether you need to prep the trigger as oppose to slap it only when ready to shoot, which is depending on a light trigger condition. If the trigger is 5lb and above, you may not be able to get away from prepping trigger or risking of losing too much time. The same can be said about DA in hammer gun according to some.

An interesting point, as I've experienced this too. Often time most of online video and advice focused on having both hands gripping at an earlier stage after draw, either before fully raised or raised but before stretch out the arms. However, I found the natural gripping resolved the best when I raised and stretched close to the final stage, which is also often when I experienced the same as OP that support hand wiggled a bit to locate the best gripping, still that seems to be the most closest point to achieve the best gripping comparing to both hands met any time earlier in the process. In this case, after draw I raise the gun with strong hand only and as it near the final point my support hand will raise and arrive to meet for gripping. This is the most natural to me but I'm not sure this would be the quickest.

I'm sure this question have been asked and discussed many times on this board, but I guess what I've found were not specific to the question I have in mind or pertaining to my personal experience. However I'll be gladly receiving any link for redirection if it has been addressed. Obviously recoil management is one of the top topics and broadly discussed to that almost anywhere I searched on web it touched on this subject. In summary what appeared to me the recoil seems to be best managed through wrist locking, forearm effort through applying torque to gripping (Vogel et al), plus stance depending on the size and strength of the person. Albeit the advice is very generic and abstract, I've been taught and figured a specific method in gripping to counter the recoil. Despite the gripping is generally aligned with 60/40 or 70/30 between support hand and strong hand, the method specifically requires the strong hand pinky finger to engage for several purpose, 1. counter the muzzle uplifting during recoil, 2. somehow it's the only way to enable the wrist locking on the strong hand in my experience. 3. the natural force of pinky will also apply a torque that force the beaver as high as possible which also helps recoil control; On the support hand side, the thumb is actually not encouraged to apply force on the frame, neither up or down. This is in contrary of many custom frame seen stippled in the area of where support hand thumb rest (implying force), or even in open gun what some would mount a panel angled purposely for support hand thumb to press down. While this method seems to be working and effective in my experience I also understand my novice experience is far from being proven for the correct method especially I've not heard of it in expert opinions or even have seen counter evidence (e.g. thumb rest stippling). Would anyone on this board mind to offer advice before I really invest in efforts to reinforce the muscle memory? Many thanks.

The best fundamental video I've ever seen, I mean I've watched almost every relevant youtuber available, suffice to say seeklander's technique works.

Interesting...I've always lifted my thumb, both hands, strong hand or weak hand, I found it helps to free the trigger finger while also ease the slide bite fear.