HWS Fish/Biscuit Template Advice?

I have built 3 HWS longboards, one from a Grain kit and then two using their keel and frame sets, but milling the wood myself.  Perhaps overconfident, I am now attempting to go all the way from scratch, using AKU to design and then Hollow Wood Template Maker to crank out the frames and keel.  Anyway, I have targeted the CI Fishcuit for inspiration and have come up with the following template.  Any and all advice is humbly appreciated.

 

Rick