Walking the dogs tonight just reinforced the challenges the single action presents as a defensive arm. As I mentioned in my other post you better get darn good with one hand because even if you drop the leash you still need a free hand for the flashlight. The SAA does point very well (for some folks) so you may get away with target focus but I’m not sure I’d want that to be any only option.
It’s funny because I’m in the same camp as @Malamute in that I would happily trade away my bottom feeders to own a proper engraved Colt SAA or New Frontier (something like the beautiful revolvers on display in the Texas Ranger Hall of Fame) but it would be like picking a Street Rod for a daily driver. I’d have tons of pride in ownership and it would perform great under certain circumstances but most of the time it would definitely not be the best (or even a sensible) choice for the job.