I'm flying mine at 3-3/4" aft of the wing tip and it's still a puddycat.

BTW, the all up weight is 18lbs. and it flys as good as I could ask for. I've had one down to 17lbs. 5oz. but there was no flight differences of any importance.

Pat

The edit was because the censorship standards wouldn't permit me to type in a common, non-vulgar, name for a cat. That's why there are now two D's in puddycat instead of two esses. That's taking things to extremes, I think.