One lightweight savage conversion.

[mongrelflea]

Toyed with kites for a while . Stunt , power, traction , surf.
Now you have mentioned that you got your 4mm hinge pins from a kite shop.
Don't know why i didn't think of that myself.
The structure is completely different from the jdcarbon pins.
I'm sure you'll have more luck with your pins than i had with mine.