I have lived in Knoxville for 13 years and have had inconsistent customer service at CCA, as many others have had as well. Over the past year I have used their gun smithing shop for the following:
Scope mounting (2)
Stock refinishing on Marlin 336c (Remlin Mar-shield was removed and a satin stain/finish applied). The new stock finish is a work of art.
Trigger work and fitting of big loop lever on 336c (now 3# trigger pull-no flop or creep)
I can not say enough with the high level of service and the the quality of work they have provided. I have been invited into the gun smith shop and shown was was be done to my rifle. Quick turn around time and If you have not tried them recently, I recommend you do.
As some my wonder, I have no affiliation with CCA other than being a satisfied customer.