On Sunday, May 10, 2015 at 2:27:11 PM UTC-6, wrote:
You'd think that RC fliers would be ideal candidates for us but this seems not to be so. I have displayed my LS8-18 at Scale Air Shows at my club and other RC clubs (tons of visitors, fliers from other clubs), have raffled off for years free ASK-21 glider rides, have talked about soaring at club meetings and at virtually every single trip to our RC airfield. People ask about my recent x-country flights and seem to be genuinely impressed/interested in what we do. However, I have not been able to convince one single RC pilot to join our glider club. I have pretty much given up trying to recruit.
Maybe it's me...

There's a subtle fear factor that has to be addressed. Model builders/flyers have seen a LOT of them crash and they unconsciously assume that's how full-size glider work. One has to convince them that full-size gliders have a good safety record - at least compared to models.