From G-force website on face-tooth design:

Clutch assisted transmissions can be upshifted and downshifted quickly at ANY engine RPM! Part-throttle shifts can be accomplished without the use of the clutch simply by slightly letting off on the gas, ("blipping" the throttle), while moving the shift handle. Wide-open throttle shifting requires disengaging the clutch just long enough to release the load to engagement lugs. Once you've pulled the shift handle far enough to get out of gear, you don't need the clutch disengaged to engage the next gear. This is a significant improvement over the old Pro-Shifted design engagement. The transmission shifts very similar to a motorcycle in the way it operates inside.

Maybe you don't need syncro's. I have always wanted to try a GF5R in my car.