no way you would flick on a safety that flush on the draw, especially since your thumb will be up and out of the way on the draw.
the problem with wide safeties on guns that aren't 1911s is that they arent as high up as the 1911 one and thus get in the way when you have a proper high grip on the gun. that the reason you see everyone swapping their shadows stock safety for a flush one. I find the same problem on the GP pistols with the wide safeties. luckily they are higher than other guns so they arent as in the way for me as others, but my support hand still gets dug into by them and my friends with higher grips/bigger hands than mine end up turning the safety on with their week hand.
An option for some is to simply use the dominant side wide safety, and leave the weak side standard.
The new X-Caliburs ship with the wide installed but the standard come in the box.




















































