I've got a 6BTV up on my roof; the feedpoint is about 25' up. I have a pair of tuned radials for every band except 80m - no room for those, so I left them off. My best DX so far is ZL on 20 and 40, and VK9 on 80, all with my K2 at 5W. I think you'll find that the combination works pretty well :-) 73 de chris K6DBG