When I followed your advice about zooming in on the hybrid chart I saw the jet symbol with the number two engine just about touching the top of the diamond surrounding the G for glider activity. If I'm reading it right, the traffic will be at or above 11,000' - an altitude rarely, if ever, reached by our gliders. Being right on the edge of class B, all club ships are transponder equipped and our relationship with ATC is a good one.