I think Doug means discount all uni rigged cats that point high which are the majority of them in my experience.

if his hobie is stalling shouldn't he put more down haul on ??

I used to race against hobie 17's when I had a Unicorn A Class they didn't seem to point any lower then, and In the Unicorn I often sailed races were I didn't even have to tack even to lay the winward mark whilst Tornado's etc tacked below me , the beauty of them was you could really screw it into the wind in gusts , without stalling .(though I admit this bit I had on Hobies )

infact I would be so bold to say that designed to be uni rigged cats forte is upwind sailing


my comments are only based on my experience racing cats in uk , perhaps things are different across the pond .