IMO, nothing has changed if you're talking aluminum arrows. Carbon arrows are a different beast. Lighter and smaller diameter, Ithink they are easier for the fletching to spin, so they don'tneed as much fletching to stabilize. Which is good, because the smaller diameter really causes headaches when you're trying to get fletching clearance with the rest. (Why do you think dropaway rests have gotten so popular? )

But clearance issues are why most arrows are sold with 4" fletch in either straight or slight offset these days. IMO, 4" vanes are plenty to stabilize most broadheads on carbon arrows, if fletched with a decent offset, but 4" helical feathers aremuch better - again, if you can get rest clearance.

Of course, if you shoot a whisker biskit, then clearance isn't possible.

I was staff shooter for a local shop whenBlazersfirst came out. The ownerwanted me to test them so he could decide if he wanted to stock them. Frankly, I was very skeptical going into the test. I couldn't see how a 2" vane could stabilize broadheads. I came awayimpressed.

When fletched on ACC's with a healthy offset, according to Bohning's instructions, I got very good results using vented blade broadheads up to1 1/8" diameter. Largerheads or heads with unvented blades, Blazers didn't do quite as well. No clearance issues on a GKF Golden Premier prong rest.

Now, I don't know how they could possiblywork on low-end carbons with poor straightness (horrificeven with 5" helical feathers). I doubt they'd work as well for someone using a fingers release either. But I almost agree with Rick on this point (same selection, different order)... If I were using a whisker biskit, Blazers would be my second choice, right behind 4" feathers.