On some flies I also have problem with the head spinning.
To solve this I put a layer of head cement or nail polish on top of the thread-wrapped hook. I let this dry before finishing the tie.
Ed
" Fishermen, hunters, wood choppers, and others,
spending their lives in the fields and woods,
in a peculiar sense a part of Nature themselves,
are often in a more favorable mood for observing her,
in the intervals of their pursuits,
than philosophers or poets even,
who approach her with expectation."
Henry David Thoreau