ej without knowing you or your flying ablity I may have given you some bad advice on the CG. my plane was still a good bit nose heavy at 4 1/4 very docile and easy flying to ME, to you it my be a twitchy monster. the book CG range is fine to use, it will be nose heavy for sure just remember nose heavy planes fly like #$^& BUT they allmost always fly again if this is a 3rd or 4th low/mid wing plane for you the CG at 4 to 4 1/2 inches for test flights should be no problem.

John