Well, the results are inconclusive. Keep in mind that I haven't shot my bow since last November and I'm only and average shot. I took pictures but I cannot find the cord to connect to the computer but I'm pretty sure I have an identical one at work so hopefully I'll be able to post them.
I fletched 1 new shaft with two Bi-delta shark vanes off set as I don't have the helical jig yet. After some nock adjustment they flew very well with field points so competition shooters looking to reduce a little weight may want to look at this set up.
When shooting the Rage practice head I saw more arrow flex but I was still hitting close to my point of aim even out to 45 yards. They seem to make more noise than the NAP Twister vanes. I took an identical number of shots with an arrow fletched with the NAP Twister for comparison. The point of impact seemed close at longer distances and virtually identical at 15 yards where I started off.
I need to shoot additional types of broadheads that have a width of less than 1 1/8" and I want to fletch another shaft with 3 Bi-delta shark vanes before I start drawing conclusions and have an impartial person watching the flight and listening for noise.