Absolutely. Ailerons must be balanced and if you have a very fast KR, so should the other control surfaces. In any case, it never hurts to balance them all.
See N64KR at http://KRBuilder.org - Then click on the pics See you at the 2012 - KR Gathering in Mt. Vernon, Il MVN 40th Anniversary There is a time for building and it is over. Daniel R. Heath - Lexington, SC http://www.krbuilder.org/MyUSA/ -----Original Message----- if the KR is approaching 150-200 mph, and if control surfaces are not balanced, can't this develop flutter problems?