Ranger the scales are very small and fine but they are there. No nead to worry about them, They will seal in the finish just fine.
Fujimo, I flesh mine, then dry them on a piece of plywood stretched out and stapled on the edges. When dry just cut inside the staple with a razor.
You can use TB or hide/sinew glue. Fish skins take longer to set and hold in place. A trick I use is to take a roll of fiberglass drywall tape. I pull out about 3 ft. and cut it length ways into thirds. That way I end up with 1/2" strips that are 3" long. Since is is self adhesive is is great for wrapping and breeths while drying. I always start at the tips and work toward the handle. I trim the starting end, to fit neatly around the tip overlay, befor I hydrate the skins. Then cut to rough length and soak the skin untill pliable. Dont forget to size the back of the bow.