no diff other than consistancy. logo's come right off with a solvent like pvc pipe cleaner or even laquer thinner unless thev'ev change in the past few years. never liked the finish of the GT's ( to noisie on the draw). didn't try this when I did use them, but have this year on some cx's cross weave. made a tube and dipped themwith some high gloss spar varnish (exterior). Smooth as glass and only 6 grns. heavier. deadly quiet.