After IDPA SOing for awhile I notice some people who shoot a variety of guns inevitably do not disengage the thumb safety as they engage the stage and then must consciously do so to engage the stage. I only have non-thumb-safety center-fire pistols so I don't know how I'd do with this in IDPA or extremis.
However, from a hunting perspective, whether the safety is on the forward trigger guard (870), on top of the receiver (Mossberg) or cross-hammer (Marlin lever) I've always adapted very quickly. It should be noted that I have very poor reflexes and it had been 25-plus years since I'd bird hunted with an 870 (that I had to borrow when I had a self-inflicted malf on my Mossberg). I say that not for show, but to note that I would be the last person that I'd think would successfully adapt to various safeties.
How do we (or not) adapt to the safeties? What is the science, if anyone has some to share.
happy shooting,
PS. I searched for a similar topic, first, but found nothing I thought was applicable in the 7 pages returned.