Hmm, the kyosho S-2c 40 CG has been mentioned in serval reviews long time ago already...

http://www.rcuniverse.com/magazine/a...article_id=219

"The recommended CG of the airplane is 130mm back from the leading edge of the top wing and I found mine balanced at about 115mm. Moving the battery back in the fuselage got it to around 120mm, which proved to be just fine for the test flights. With little elevator trim needed it seems to fly pretty level at this CG and is plenty responsive."


and also this one:
http://www.kyosho.com/reviews/kyoa1028-rcm.html

"and the model pancaked in, destroying the lower wing, ripping out the landing gear, cowl, muffler, and fracturing the upper wing in several places. It was indeed a humbling experience to call our editor the following Monday and explain what happened. Great Planes was kind enough to send a second model to review, and we proceeded to assemble it for the next attempt. This time we moved the Center of Gravity forward to 120mm."