Have one P8 undergoing restoration and 1 NIB "deluxe" kit w/sheeting etc. No formers, only the firewall, floor plate for tank and wing hold-downs to install. Experience a wing failure after a series of snap rolls on another P8 - outboard of retract-well (totalled). That wing was glassed at the center section and Monokoted. On the restoration P8 have installed a 1/8" ply spar (with 1/2" holes every 1.5" for lightening and glue area) aft of the wheel well, running the full thickness and length of the wing (exc. tip). This mod. added 3-4 ounces of weight. The spar would be easier to locate if you went with tail dragger set-up. Also added two 1/8" hard balsa joiners to the stab. Did not like the aileron linkage set-up either - went with 1 servo per surface mounted about 1/2 way out on each wing half. Using MK elevator bellcrank for the elevator halves. This set-up is much more positive than the "Y" pushrod design. Also, went with pull-pull on rudder.