That workshop should be a very informative and fun experience. I have spoken with John on a couple of occasions and have always found him to be very much a gentleman and willing to share the results of his work in the field. While there are many excellent photographers and wonderful printers, I think that John has worked out a very well thought out and executable process. I was particularly impressed with his ability to work out the TMax films at their initial release when everyone else was complaining about how they simply were not worth using.
I love some of his Colorado images. I lived there some years ago and his images are so wonderfully representative of that area. I agree with you that Monterrey should be fun.