Atlas
More helical means more spin....means more control right??
Not always, and not that simple. There are many factors that differ from shooter to shooter
e.g., shooting form, bow speed, accessories, setup, etc, to say that what works for one shooter will work for all. Before I started buying and installing accessories that might not work for you, and increases maintenance and probability of failure in the field, I suggest you check your sparkplugs before you overhaul the engine.
I do not know what your " flight issues" were, but I would have asked you many other questions before I asked you (only) what vane/feather angle you shot, and told you that you need to shoot helical if you shoot a Muzzy head; and that is that. Too simplistic, and definitely nothing more than a product-promotion piece of advice.
Until last season, I have always shot a straight fletch (feather) and always had great flight. I pumped my peak about 5 lbs. to 67 lbs. last season, increased shaft spine, and I started getting some erratic (broadhead) flight and hitting lower left. After checking and rechecking form and gear setup, I finally cured the problem by a 1-degree offset on my fletch.
Several years ago, I tried a full helical when I was in a hurry and had some arrows made for me. The person who fletched the shafts apparently did not read my order thoroughly, and put a full helical on the fletch. They were too noisy and I could not get good and consistent flight. There are other shooters who swear by helical and get superb flight.
Tried vanes one time. Could not get them off my shafts fast enough.
Hope you are not making the mistake of judging your shaft flight and accuracy by believing that your broadheads are supposed to fly and hit exactly as your fieldpoints do. Some do. However, it has been my experience that most do not. When I hear or read that a shooter is complaining that his broadheads do not fly as his fieldpoints do, and do not hit where his fieldpoints do, I always ask: ' What do you use when you hunt, fieldpoints or broadheads?'