I currently use the Arizona E-Z Fletch and have been happy with its performance over the past several years. However, with all the recent talk of fletching your own arrows, I've been considering picking up a better fletching tool.

For those of you with personal experience with this fletching tool, is it really worth the money?

How easy is it to use compared to the E-Z Fletch?

Why is it better [or not] than the E-Z Fletch?

Will the ability to add a bit more helical to my fletching really make a significant enough difference that I'll notice?