So I may have the opportunity to get my Glider license soon. It would be in a motor-glider, and I'm looking for input from any of you guys with experience.

I've downloaded the Glider PPL PTS, and will review it tomorrow- would you recommend doing the PPL or going right for the Commercial? What type of maneuvers can I expect, especially for the commercial glider? And what would you do to prepare? Thanks!