Prefer the AF style because of the streamlined angle of the release lever. I can toss a stub and slip in a new rod, get fired back up B4 the slag freezes. Work fast, take quality breaks...
I like the stinger v. Had mine for almost a year. Still holds the rod very tight. But if you have a helper who just drags it you will lose your spring.
I have been using T300 (cut down) forever. You just have to be a little more careful not to arcout on something. I use one on my stinger and grasshopper.