I am using 140 grn Grizzlys and the short 3 rivers aluminum 30 grn adapters so they will screw into the brass inserts in my AD trad lites.
Out of the first six that I tried, 3 spun like a dream...3 wobbled like crazy.
Since I am new to this, I just screwed the adapter into the arrow, then carefully re-heated the adapter...putting a little heat on the broadhead too.
It took me about six tries each to get those three on acceptable straight. They still spun a bit off kilter when spun vertically on the table.
They were close but not as perfect as the first three.
So I just decided to see how they flew, and surprise...they flew just fine.
I then decided to put them on my horizontal arrow spinner...DUH...should have done that first.
They spun great there, so I suspect as someone noted above, that the tanto head on my wooden table may have been part of the problem.
I twisted and pushed as I installed and figured out also after a few tries that I was not getting them in far enough.
I had to get them fairly hot...hotter than Big Jim says you should. His video shows him holding on to them with bare fingers.Nope...not me, I had to use leather gloves and a pliers with electrical tape on the jaws.
Keep trying...you'll get it.
Hope this helps.
Now if I can just figure out how to get them sharp. Can you help me out there?
Irv Eichorst
www.truesouthadventures.com