1/6th for me, mainly 'cos, as a Brit, I am a little short on space. 1/5 is a possibility but larger than tha just gets too big and I must say, over here, too damned expensive to justify on what after all is just a hobby. Smaller than 1/6 and they are too small to stand any chance of being realistic either in the air or on the ground.
cheers
Rick (the "jealous of my American cousins"!)
