The only complaint i've got about the left handed helicalis you'll need to periodically check your field points to see if they've become loose.

What is the difference between helical and offset? All I know is that I don't like straight vanes for broadheads. And I hate retightening my field points every shot.

Helical is twist, offset is angled, if that makes sense. Your points coming loose can be fixed by simply adding a little bowstring wax to the threads.

I'm right handed
And I fletch my own shafts. I prefer aright helical and depends on the vane itself as to how much helical I'll put on it. Quik spins don't get as much as a duravane but Blazer will get the same as Quik spin. I also locate the vane at the rear of the fletching tool close to the nock as possible. I think this gives a better control on flight and a forward balance point.

I shoot right handed with a right helical. I was taught the reason to use a left helical is when you shoot off of a small rest (long bow)or your hand (self bow or flat bow)that the left helical will turn away from your hand and will not cut you. I have had a few small cuts from my feathers so I just turn my nock and occasinally shoot cock feather up, out or in.

right right