Hi Tom H.,
I don't really know if the smaller version (# 10) is the Slim-Bodied Minnow. I just experimented as I went, using as much material as I needed to please me. I forget how many clumps of the flash I tied on, maybe about two, I forgot...?¿
The Root's website is down, I heard rumours (don't know if they're true) that Root's is going out of business.