D-fly If memory serves 6 or 7 twists. I put my line through hell. I have used maximum line before and others . I'm extremely consistent on what I do and my twist would almost always be in about the same place on the line. For what I do and how I do it they just caused head aches. After about a half day of fishing I start seeing small little pig tail twist in my line. You dont get this ? Maybe I am doing something wrong I don't know. Also fishing macs you dont get releases every time you touch bottom with your plug and have to crank down your tension on the release ? Now turn around and go back koke fishing and not have to re-adjust them? Maybe I didn't stick to the learning curve long enough or IM just a slow learner. LOL.
Slip pressure wont effect line near as bad a kinks from twisting. But yes they will start crap you don't wont with line also.
Cheaper is not the only reason to us clamp type. Like I said I got tired of adjusting chamberlins all the time. Sometime I might be pulling a hoochie on a 3 inch sling blade at 1 mile per hour the next I might be pulling 14 inch flasher at 3 miles per hour. All I have to do is put the line in farther in the clamp and im good to go. I use them from Kokes to ocean salmon that are 30 plus pounds no adjustment needed. just line placement in the pad. I'm not one to screw with things while fishing. I also have a tendency to start bouncing my gear on the bottom and they just kept releasing on me until I cranked them down. When fishing lake chalan thats a redo that take 15 minutes to get up and back down to 300 feet. Not for Kokes, but I like my releases to hang for a bit after a strike on some fish, so the boat keeps the slack out of the line until someone gets to it. If you think your fast at getting to a rod that has a hit, hang a gopro camera in your boat and watch it at home. Sometimes its crazy how long a fish is on before anyone moves.
Different things work for different people and what they do. I'm not saying they aren't a great release , they just weren't for me and what I do.