Eric,
So you expect a "miracle" with a gun that you earlier off loaded, because of not working right for you..

I appreciate you wanting to "make" the pup work-that is a given..
I have not personally used 124s,I am a 115 guy..
Have also used 115 STHPs,and WWB 115s.. No probs..
I wish you the best with the pup,and if you continue to have problems after a reasonable break in period, deal with the R Bros-they will take care of it.. 
Brenden
Thanks Brenden,
I appreciate your input... Truth is this "Pup" I just had return home is NOT one I had problems with, though I have had "Major reliability issues" w/ 3 others... I did have one that was "Perfect" right out of the box; don't recall what came up causing me to trade her off, but sometimes we just simply do "Dumb things..!" (LOL..!)
As to reasonable break in periods; IMHO, & given the metallurgy and technology of today; it's nothing that "Jive's" by me, and I understand that w/ man made "Stuff" things happen... Thus the statement that some companies feel they must put out saying if after "X" # of rounds it's still not reliable, we'll try & do something about it...
Again I understand that from a business perspective, but in the real world of reliable personal protection I think our "Pup's" should be expected to perform correctly and perfectly from the get go... Anyone who does carry "all the time & always" should have the security immediately of
NO concerns about the function of this, their chosen handgun;
particularly these which should for all intents and purposes be the "Creme de la creme."
I expect that I'll be "Shootin' the tar out of this one" in the days to follow & I again hope to have gotten one back that is "Good to go, from point A..!"
I've had (And have...) several quality handguns that have been 100% "Right out of the box, for now, and after several years of use..." They also are more commonly NOT (+-) $1000.00 handguns. (Well.., some are a frightening bit more actually, but not all by any means...)
Suffice it to say, that I'm back for another try and hope that my "Point of view" does not in any way "Stir the Pot" in the controversy department for anyone on this very fine forum. That truly is
Not my intent at all... I just feel the need to share my views & nothing more.
I'm glad to be back for another go at it indeed..! Truthfully I'm also glad to be back, to participate again occasionally with whom I find to be an intelligent and "Tight Knit" buncha folks..!
Respectfully to all,
E!PS - Brenden, Nice to "Talk At'cha again Pal!"; How've ya been..?