sensible flyer, 14k msl from winch? Nice.
Only in hilly area where you can use ridge to lob you up further into thermals or direct from ridge lift to wave..
I never got to fly wave so far in glider and at Usk, one needs more than winch to reach the wave, since the thermals don't connect to wave easily in that area, from what I was told when I did bit of gliding there. There was shear or inversion etc between achievable height from thermals and bottom of wave, so guys usually took high tows into wave.
Now I've done bit of gliding in Oregon this season, WVSC (North Plains, OR) and about 30 bucks (20ish quid) for 3k ft tow seems expensive compared to winch. Wait till I pay UK tow charge again.. Double the cost.
I'm hoping to have more time in between my rotary and fixed wing flying/training/instructing, to sample the wave soaring somewhere in Nevada, Arizona, Colorado etc coming years. Coincidentally enough, I checked out SSA website. Truckee would be nice to get to fly out of, too. Own glider would be nicer, but too much hassle for someone living around.