Thanks for responses and info so far. I don't have a use case beyond having fun shooting .38s at the range and a desire to add more quality 4", adj sight .357s to the safe.
Halfway through that Revolver Guy review I realized I'd read it sometime in the past year but it was a good to read it again.
I've been following the Python rear sight issues and the need for thread locker on on front sight as well. Not a problem, I've got blue and green on hand and I'm not afraid to use them.
I did get to briefly handle a new Python Saturday (store was busy and I didn't want to waste the counter guy's time beyond a minute or two). Felt slightly larger than an L frame but that could have been the stocks as much as the revolver itself. I'm intrigued enough to consider looking for one later in the year. Price wise it's right at the edge of where I start getting the heebie-jeebies so I'll probably hold out for a used one.
I'll say I really want to like the 3" KC but I do not like the squared top strap or fixed rear sight. The couple I've seen in person I could almost shave with the top strap edges. Maybe D&L Sports will offer sight conversions like they do for J/K/L Frames.