Spoof,
I do this a lot. From your description and the photo, it looks like you are trying to get backwards trailing fibers by wrapping hackle then folding it back with thread wraps. I do this differently, using either hair or marabou tied in along the hook shank in three bunches. If you want hackle fibers here, stripping them off the stem and tying them in like hair will eliminate much of your bulk problems.
This is how I do this:
First, tie in the flash. Tie it in just behind the eye right in the middle, then fold it back and wrap over it till over the hook points. Take the thread back to just behind the hook eye.
Next, tie in the hair (if you want feather, marabou is good here as well). Tie in a small bunch of whatever fiber you want to use here between each hook bend (1/3 of total you want). Use only one or two wraps to hold it in place. Once all is added, wrap tightly from the hook eye to above the hook points. Now, add the hackle you've chosen. Tie it in where you stopped the thread, then wrap the thread back to just behind the hook eye. Make as many hackle wraps as you like, then tie off.
Now you have an option. Most dressed trebles done with hackle like this leave the hackle standing out from the shank, like on a dry fly or bass bug. This gives more motion and vibration in the water. You can, if you want, wrap back over the hackle to angle it back, sort of like a soft hackle. up to you, but on a spinner the water pressure over the hackle will push it back naturally as it's retrieved.
I always make sure that no thread is wrapped past the point on the shank that's even with the hook points.
Good Luck!
Buddy
It Just Doesn't Matter....