Is it just me, or do the limbs curve unevenly? Feels like the bottom limb is curving first, and then the top. Not sure if this is intended?
If you put a lot of heel down pressure you can force the limbs out of timing.
They cover proper grip in a section on the CH on the web site
http://www.borderbows.com/uploads/HEX9%20product%20catalogue3.pdf.html
Look at page 13