I look at it like this, it’s all about surface area. The more vane you have whether that is length, height or combination of then the more drag it creates on the back of the arrow therefor increasing stability. However, there is a balance with have too little and having too much. Blazers are great for creating the needed drag but like stated above I also had clearance issues with my cables. Personal preference plays a lot in deciding which vane. Some cause more drag but more noise, some people like 4 smaller or lower profile vanes of 3. How well your bow is tuned and what broadheads you plan to shoot. Some are a PITA to get to stick and some glue up easy. The choices are overwhelming. I personally use a 4 fletch in either boeing heats or flexfletch SK300 with fixed blade heads.
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