Doc, I've owned over a dozen Smith's over the years with great accuracy and superb triggers...that said...a cpl of years ago, my wife's M36 (bought new in '92) had a cylinder stop that had worn...Smith fixed it on their nickle including shipping and we had the gun back in 2 weeks. Another M637, a new gun, that would not advance to the 5th shot for some reason, got the same treatment and I had it back in 2 weeks again. Both came back in superb shape with a trigger job as a part of the no-cost fix.
I don't know what the delay is but...in the meantime, I'd shorten the grip screw with a fine cut file and be done with it. I'll also say that my M69, bought new two years ago, had a noticeably heavier DA pull than what I've come to expect from Smith. I'd like it lighter, but it's a .44 and I usually don't use it for DA defensive type shooting so have not persued a better trigger. It's SA trigger is every bit as good as my late 60's and 70's guns...in a word, fantastic.
All in all, their CS for me, over 50 years and better than a dozen guns, has been great. Hope you get it worked out. PM me if you have questions on shortening that grip screw.
Best Regards, Rod aka Dave