Kelly and All,
Thanks for the Hot Spotbuilding tips and photos. On mine, I incorporated wheel wells to seal off the fuselage interior from any air pressure build up. I also added trailing edge stock (parallel to the struts), foreand aft, to help divert the airflow over this area.
For the fin mods, I embedded a JR hi-torque MG servo in the middle of the fin with HD linkage to the narrowed rudders (as req'd for AMA rules). CF strips were added spanwise to the fins followed by 1.4 oz F.G. cloth in a diagonal orientation, 3/4 oz. cloth was added on top of this. My fins are secured to the fuselage by 10-32 flat head bolts thru hardwood dowels fore and aft. The wings and fins are retained by the plywood tab as per Wilcox's directions.The obechi skinned wings are glassed with 3/4 oz. clothwith overlap at the leadingedges. I used JR 8411 servos, one per panel, with theservo andHD linkage perpendicular to the hingeline instead of at an angle as shown in the Graupner instructions. The linkage ison top of the wings to prevent any gear strippingfrom a wheels-up landings. HD Klett hinges weresunk into 1/8" basswood on the hingeline and pinned for retention.
The model is provisioned for smoke with a 16 oz ventral tank off my DLCyclone and I have a BVMF-16 centerline tank with an internal Dubro 24 oz tank also. I don't intend to fly my HSlike a speed demon andI'm pretty much a mild flier anyway- especially at my age.
I've discussed these mods with John W. from Model Aviation Products and he approves of them also.
Hope these modsmeet your approval also and I look forward to flying mine duringthenext season.

Art ARRO