It looks like the TS focuser is slightly different also, which may be better (the GSO version is a "standard" Crayford, and it's sometimes difficult to get the tension enough to hold a camera-laden imaging train yet still be able to easily focus either manually or with a focus motor -- if you make the tension light enough to focus easily, the focuser will slip with the heavy camera load).
Other mechanical issues, it's hard to say if there's any difference. My experience is that the very thin steel tube flexes considerably, and the scope doesn't hold collimation because of that as you move to different positions across the sky. All versions of this scope have an open back-end (I guess to help mirror cooling) that leaks light, so if you have any light source (including LEDs from equipment) that's visible to the back of the scope, it leaks into images.
The optics on mine (a TPO version from OPT, but it's essentially a stock-rebranded GSO) are pretty darn good, but the mechanicals are problematic. I have mine sitting in a case for now, because without reworking the mechanicals to better hold collimation, prevent light leaks, make the focuser better...imaging with it was very frustrating. If the TS mechanicals are improved over the stock version, they may have solved some of those issues.