Weight is a big factor on such a small bird but I do have a couple things going for me. One is I'm using the Diehl wing and have the ability to add wing tanks and have the CG more under control during fuel burn off but that brings in the fact that more weight is added to the aircraft and more potential chance of system failure. There would only be one trim tab on elevator starboard side either 26 square inches or 39 sq. I have been studying different counter balance for elevator and there is a small amount of room under the fin for an arm to mount counter weight. But in truth I 'm not totally convinced if any thing is needed beyond John Taylors original design of the tall group other then the mounting of the Horz.Stab. The other plus is I'm 155 lb soak and wet and just getting lighter with my age. One hiden thing that haunts me is I have the fire wall that slopes back and not 90 degrees to thrust line and prints call for the builder to move fire wall back 3" if VW engine is used so it makes me think that I will be nose heavy and may need weight placed at the tail to get CG in range but too early to tell but I feel comfortable with building the tail group heavier then prints called for. By the way I was fiddling with signature and ended up with a picture and have no idea how to remove it.