And now dear cactus friends I would like to close this thread -- it has gone on far longer and garnered more interest than I ever anticipated or intended. I am quite worn out for it is difficult for me to sit and type for any length of time these days (I usually compose my lengthy posts over a period of several days using a text editor then copy and paste them to the Forum). But again, thank you so much for all the posts -- they were much appreciated,
