Thanks Bill, I'll be sure to follow yours (and Glenn's) closely. Didn't realize you had done one (or had possibly forgotten)! I appreciate the offer for the references, I'll take a look around to see what I can find before asking you to go to the trouble of making a disc. If I get it quickly enough I'd like to possibly toss it in the current GB, but I'm running out of weather, and I still have a Lanc to do.