I am going to start fletching my own arrows, but was wondering whether I should fletch straight with a 1-2 degree offset, or if I should fletch helical? If helical, which direction, left or right. I currently have a fall away rest (QT 4000) so I don't think vane clearance would be an issue if helical. But wanted to open it up to find out what the advantages and disadvantages are of each.

Thanks.