F4A,
I use gold beads, just not much when tying red bloodworms or chironomids. I like black, black nickel and white when using red.

You can also vary your sink rate depending on whether you use a bead or not and the type of bead you use.
If you tie your flies blind (no bead), you can get some great takes fishing just below the surface with a floating line. This works extremely well when fish are rising and taking the pupa that are just emerging from their schuck. Having some wind to give you the "chironomid chop" helps as well.
A standard bead will sink well, but stuffed with .010 lead will sink even better. A tungsten bead will sink like a rock. It really depends on how you want and like to fish.

I like your ties. I would suggest a different hook though due to the lack of gap between the hook shank and head. As you can see, I've tied on similar style hooks. The final product looks great but the hooking ability leave something to be desired.

SF