Beautiful, robmoney! Now you've got to try the GWS direct drive tail motor (no offense Heli-harry but it works better than a dual tail motor and weighs less).
Nice work HH but that g-10 circuit board material is hell on tooling. Eats end mills and drill bits fast.
I made a fin out of styrene plastic sheet (Plastrut material at the LHS) and o-ringed it to the boom and the stock tail support rod. Weighs amost nothing and relies on the rod for strength. It's a lot uglier than HH's.
See: