I have one or two Delta Colt 1911's in 10mm. I just have never warmed to carrying a 1911 as a field handgun while wading in streams, moose hunting in bogs, being out in extreme cold, shooting with gloves, etc. Next year, I probably will shoot a STI in USPSA Limited, so my feelings might change.
I will say that my main JoJo's tuned Delta 10mm has never malfunctioned.