J.......I can share with you what I have found on the bigger "warbirds"....I fly 85" WS and larger.....I have "tinkered" with aileron adjustments and have found by "flying" that a slight "droop" works the best....I am assuming the tip stalling you are refering to is at/near stall speeds during landing......My P-47(Ziroli) I have about 1/16" droop in each aileron and with 45* of flap on a 36# plane I can slow it up and make very good wheel landings without being concerned about the "Bottom falling out".....I dont know much about the smaller planes but try small adjustments starting from neutral(Thats what I did)...and see what works best for you.......BTW...one reason I tried "drooping" the ailerons is thats what alot of the new generation large commercial aircraft (Boeing/Airbus) ...have for landing flap configuration......Bill......