I thought to myself, "Self, what you need is a backup for your wonderful all-stainless GM-sized 5" bbl SW1911. In case you want to get work done on it and suchlike."
Yeah, what REALLY happened was I bought the scandium E-series CDR sized 1911 from S&W and my first all stainless became the backup. It disappears in a Milt Sparks VM2 clone IWB holster. Width and weight is such that it carries better than many compact & sub-compacts semis and most all revolvers.
Cooper was right: the LtWt Cdr format 1911 is probably the best carry gun to be had.