Question for Kanati shooters

[Rock 'N Bow]

I have been shooting my Kanati with the heel of my palm down like a standard longbow. When bare shaft tuning the flight was inconsistent. Today I tried shooting with an open grip similar to a recurve. I got perfect flight. How do you grip your bow? Can I expect good flight with the heel down if I shoot fletched arrows?

[BUCKY]

I grip mine like a recurve.

[Rock 'N Bow]

I guess I've been gripping it wrong all along. I did notice it is a little harder to draw when gripping it like a recurve but it is more consistent now. Thanks.