right wing,left wing helical does it matter?

[chopx2]

The only difference I see is with screw ins with single bevel RW. The rotation of the BH can cause it to 'loosen' going through bone so use some loctite and should not be an issue.

Learned that reading one of Dr. Ashby's reports.

[NorthernCaliforniaHunter]

NO NO NO!! IT DOES MATTER!
 
When you shoot a bow like mine, using 4 feathers,  5" long - helical, the wrong twist will cut you like a knife. Left for a bow held in the left hand, right for a bow held in the right hand. I have the scar to prove it.

[Brian Krebs]

make sure you have the correct clamp on your jig.