My local shop has two used color glow fd3. One is about a 7/10 and the other a 6/10. $35 and $25 respectively. Are they undercharging for those?
Hard to say. I bagged a couple of the color glows for a bit. They were the most mellow FD3's even brand new. It would be interesting to see how a 6 or 7/10 flew.