I've been researching both of these products and reading reviews and thought I would pose the question here (I've also searched and read through the various posts here about each). I'm looking for a better more accuarte alternative to using my straight edge clamp and CS for sizing sheet goods. I will agree that the TS55 looks like a really nice tool but that aside my question more or less surrounds the guide rail system as to which from those who use them is really better and offers the best value for $$.