I own an old snub nosed 386PD. I bought it several years before I heard of the Night Guard. One of the things that I did to it was put the extreme duty rear sight on it.
At the time there was no 327 that was comparable. When the 327 Carry came on the scene, I added one of those to the collection. Though I swapped out the Ahrends grips for some Pachmayr Compaqs.
Now that the Night Guards are here, I added a 327NG and have plans on geting a 310NG and a 357NG to go with it. It is the hide out revolver I would have built if I had the chance.
BTW, all three of these can be carried in the front pocket. Loose jeans or cargo pants help. Remember concealed does not mean no bulge or no printing. It means hidden from view.
At the present time I own more than half a dozen Scandium framed revovlers. Most all of them have several thousnad rounds of full power ammunition through them. My 340PD has more than 5,000 rounds of 357 Magnum 158 grain JSPs (old issue ammo) through it plus other ammo as well. They are no more or less prone to failure than the alloy framed revolvers that they have replaced in today's market.
These rumors of failure have been blown way out of proportion thanks to the internet. In the olden days when a model 37 frame developed a crack you heard about it at your range or over a cup of coffee, perhaps 50-80 peapole hear the story. Today that same story goes out over the internet and thousands of people or more hear about it. Then when the next story comes up someone chimes in and says "hey I heard of another one, the company must be going to hell." So today Everybody has heard several stories of these few failures.