Thanks for all the info. guys. I don't have an ambi-selector, no arthritis or other physical issues.
It seemed it was just the last little bit of travel to get it to the fire position was sometimes an issue. I never failed to get it on fire, just had to concentrate to get it all the way down. That 45 degree safety would obviously knock out that issue.
I'll work on it a little more, and if that doesn't solve it I'll go with another grip. It was just a weird experience that didn't happen every time.

