Hi Tim,
I just happened to see this thread, and thought "oh no" what did we say now
Jeremiah is off for a few days, but I'm assuming you were talking to him about this. He was probably doing his best to pass along what I've generally told customers.
Basically, Jerry is exactly right though. Listen to what others who do aerobatics have to say when deciding. Jeremiah is not a pilot, and I'm not an aerobatic pilot. What I generally tell customers is that most of our customers (RV builders) go with the hooker "Sport" harnesses. That's not to say that they will do what you need them to do though. I try not to tell customers what they need.
One other thing I'll through out there that's related. If you are going to go with redundant waist belt attach points, and you plan to put in our rear stick boot assembly, we'd be happy to talk with you about it before you fabricate something. It could save you and us some extra hassle, and produce a cleaner install. It just allows us to coordinate what we are doing with what you do. Hope this helps. Sorry if we lead you astray a little.
Best regards,