Hmmm, That's quite a few. I've just always been partial towards Spyder barrels. (Though I haven't really shot to many others.) It would be nice to see some higher end guns use them.
Yep as much as I wish companies would just use a common thread that isn't going to happen so before buying a new barrel make sure the threading works with your marker. Oh and I believe older Mokals used Spyder threading too.