I am glad you are getting some use out of them. This is the fly that caught my first fish on a dry! I have seen them with full hackle, no hackle and various states of trimmed hackle. I decided to send one of each extreme, no hackle and full hackle.
Let me know if one is more effective then the other.
By the way, Thanks for hosting this swap. It was loads of fun and I learned a lot also. I guess it is sort of the whole point.