We just upgraded parksaver hoppers 2 weeks ago (but only paid like $285 for them at the time that I ordered them). ANYWAY, no problems upgrading to the
DVC Gold pass. Did it at the front gate Guest Relations at Epcot before going in. We paid exactly what I expected to pay ($117 and some change for each one). Don't tell them you want to bridge the tix just tell them you want to UPGRADE them. I think the word bridge confuses some of the CM's.