I have assembled and I'm currently flying an arf. It wants to climb at 1/2 throttle and higher. When I adjust the down trim in the elevator to get it fly level and I'm comin in to land I pretty much run out of up elevator to flare...It's an esm stuka. The stabs are glued in with dowels for setting the tail incidence. Im positive it isnt a balance issue.. Am I correct in assuming I cant check the tail incidence since the elevators are glued in? And about the only thing I can do is to put some washers behind the top of the engine to add some down thrust and point the front of the engine down? Thanks for the help in advance.........