For those of us who have jumped on the Dremel Bug bandwagon, you can make a really effective strike indicator from foam with your dremel lathe.
Use the color of your choice, shape it to your specs, then thread a piece of round rubber or a rubberband through the center hole, leaving a small loop protruding from the end. Stretch and add some CA glue to the other end, and let it pull back into the hole. Clip it off, and you are done.
These loop onto the leader just like the poly yarn indicators, float like the bobbers they are, and if you keep them cylindrical, they can give you information about your drift.
I've made several hundred of these for guides on the San Juan in New Mexico, and they seem to be working quite well.
Just another option.
Good Luck!
Buddy
It Just Doesn't Matter....