In the January 1990 of the KR2 manual, not KR2S, Page 82 talks directly the installation / methods of a wing (not stub) tank addition resulting in 6 gallon tanks (and how to make them bigger). There is no mention of impact on G loading.
Larry Severson Fountain Valley, CA 92708 (714) 968-9852 lar...@socal.rr.com