Sure nodose, I understand that spine is spine, and BTW thanks for the laughs at my question. The actual arrow spine will not change. I didn't mean to inply that the arrow spine changed. Please reread from my first post.

<BLOCKQUOTE id=quote<font size=1 face='Verdana, Arial, Helvetica' id=quote>quote:<hr height=1 noshade id=quote> What I noticed is that without the stabilizer the arrow flight was less sensitive to spine. What I mean is that I could use a variety of arrow sizes with a variety of tip weights, and still get a decent paper tune (with the stabilizer off)<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face='Verdana, Arial, Helvetica' size=2 id=quote>

However, the energy transfer to the arrow must be changing slightly with the use of the stabilizer on as compared to not having a stabilzer on.

Jerry, I am actually thinking what you are. Maybe my stabilizer is a little heavy for the setup. However, I have heard of others having better results with a heavier (more than mine) stabilizer as compared to a lighter one.

But, I still can't understand why the arrow flight of a variety of different spined arrows would be less sensitive to tuning without the stabilizer than with it.