A question to ask, well several and I would welcome opinions. I sent an email to Mat but I don't think he'll get it before Monday. If I were to put a 14 inch diameter mirror that is 1 inches thick or so, compared to the current 2 inch mirror that is currently in my 14 inch, I know I would need to adjust the counterweights to accommodate for the loss in weight to balance the scope, and thus my first question. On the XX14i that i own, it came with 3 counterweights in the back behind the mirror that screw on. If I replaced these with a heavier counterweight that was slightly larger than what is there, would the additional counterweight impact cooling time? I would assume not since the Carl Zambuto mirror would be lighter and already take a shorter cool down time. Is that correct? I also know I could keep the current counterweight system and add a bag full of lead shot and attach it to the lower tube for increase weight. That option seems to work also. Next question. Since the weight of the scope would change would this require a build of the lower base to correct for the new center of gravity the scope would have or would the current system still work? Just thinking aloud here and testing a few ideas among other tests so just seeing what a lighter mirror's impact would be at the 14 inch level. I know when I tested the 10 inch Zambuto mirror, the new mirror worked just fine in the stock tube and mirror cell. I had no balance issues. Anyway, if you have a thought let me know what it is please as I study for finals this weekend for Monday. -- Jay Eads