I haven't called Hobby Services about this yet. I think I'll call our dry cleaners before I'll call Hobby Services. The little elderly lady over there isn't that much more knowledgeable about Saito carburetors than the guy is on the phone at Hobby Services but she is a lot more pleasant to speak with. Last time I called HS about a part on the Saito, he said he would check on it and call me back. It has been 6 months and I haven't heard a word back from any of them.
I went out and flew today with the idle up a little. I think I tweeked this and that enough to make it tolerable at least until a solution dawns on me.
Thanks again for all your input.