No doubt Lone Wold has the best CS going. Fortunately my 21SF long slide with LWD barrel has been flawless right out of the gate. Also have a LWD 24 long slide with LWD 357 sig barrel and same results. Last but not least is my LWD 34 upper including barrel also on a 19 frame and they are all 3 ectremely accurate and trouble free. But after doing business with them for a while I have never received anything but the best in customer service and their workmanship is as good as it gets. I have pics of all 3 Long slide posted in other listings in the Longslide forum so dont have enough room to post again here..if anyone is interested.