I fletch w/ right helical. The advantage over offset and helical to straight is spin. Helical spins more than offset, but offset spins more than straight. Spin stabilizes much mo betta!

The problem w/ helical is this. If you are shooting a "TM Hunter" style, 2 prong rest, you will almost always have some fletching contact. With this style rest, straight or a slight offset is the way to go.