I've shot it enpugh I believe my only concern is the base pin but then I have known quite a few over the years that also were concerned about their base pin in other than ASMs. Problems seem to arise with heavy loads which is why I suggest to anyone with open top frames to avoid heavy loads. There is always a bit of break in but once shot some should settle. Even known a few to have to pick up barrel assy. down range due to base pin failure. Those were pistols that had some time on them and a lot of rounds put through them. From some reading it seems the major issue with the ASM Walker is the base pin but improved later in production. Luckily mine is one of late production and hope with careful use of moderate loads it won't be a problem. One other ASM issue was too soft metal in wedge but that is way easier to fix then the base pin.
Forgive my ignorance, but what's the base pin? Are you talking about the cylinder locking pin, or the cylinder pin itself failing.
Here's a link to a parts diagram, perhaps you could help me understand the point of failure that you're referencing, by telling me the part number.
https://www.taylorsfirearms.com/walker.html