Been making the final tweaks to my hunting setup and dialing in my broad heads. The reoccurring issue I am having are heads that spin completely true. Granted I am shooting the older style thunderheads from a faster bow (Ally), but when I get a head/arrow combo to spin dead true, it flies dead true even with 3” regular vanes. Shoot a head/arrow that is just the slightest bit off, and the shots just aren’t quite as accurate even with a 4” vane. Now I know many of you shoot little heads & blazers, but when you want to see the principle displayed, shooting a bigger head with regular vanes really makes it stand out.

If you are having issues with fixed heads all over the place, CHECK HOW THEY SPIN. Make sure they are true, and I mean dead nuts no hint of wobble.

Along these lines, Ryan....I would suggest numbering your arrows.

I have spin tested BH's for years. What ever way they're pointing when nocked on your bow is the direction they'll fly.

There is a couple of ways to tweak them into being straight.

Thunderheads can squish out the o-ring and seat unevenly causing wobble. Loosen and carefully re-tighten or replace the o-ring and try again.

Re-heat the insert and spin it inside the shaft and try to float it in the hot glue so it is centered. Do not lean the broadhead against the wall to cool, it may cock it in the shaft.

I use Wasp SST Hammers. They come with a slightly cupped aluminum washer. Place the convex side against the insert and the concave side against the BH and tighten snuggly. I have had very few spin test problems with this set up compared to when I used to shoot Thunderheads. I'm not a fan of the rubber o-rings.

I spin the BH equipted arrows over a lined index card to check for point wobble. I'm also a bit superstitious and always align the blades with the feathers, I believe that it helps.

I kinda do the same thing GMMAT. My number one arrow Is the best spinning arrow of the 4 that goes in my quiver and so and so down the line.

Spin testing arrows with the BH's on Is a very important technique that I think gets skipped by allot of hunters. I wouldn't feel right If I didn't do It.

Right on Greg!!

I always spin-test mine, but honestly - I can't shoot straight enough to notice a difference. LOL

Good point. I do that too. Right now arrows 2 & E shoot the best. If only I could keep ink to stay on the T-heads and know which ones lined up with which arrows from year to year.

My next experiment tonight is just throwing some heads on arrows I built and seeing if they are easier to get spinning true compared to the arrows I’ve bought.


GregH,
Do you heat the inserts in boiling water?

Ryan:

Why not just number the fletching? That's what I do. When I get a combo that spins "true"....I do as Schultzy does and position them in my quiver that way.....best to worst (with "worst" being TOTALLY acceptable).

Lancaster also sells TINY stickers you can put on the nock end.

No, I'm too impatient and use a propane torch. Besides, I never thought of that! [:-] Does it work?

You do have to be careful though, or you will over heat and discolor aluminum arrows with too much heat.

Do you guys "float" your arrows too or is that over the top?