John,
That's an interesting idea, I'll tie some up and see how they look. For the golden stones I'm tying, I don't think visibility will be as much of an issue as with the skwalas. The ones I've seen were pretty "active" so I'm tying them much bushier; color is a lot easier to see than the dull olive of the skwalas, too. I know you had great success with your FEB for the golden stone hatch; I hope you'll give some of mine a try.
Regards,
Scott