Hi all, I aquired a Fisher CZ-6a from my brother in law, it is a real good machine (detects deep) in real good shape but is alot heavier than I am used to. I was offered a decent trade in value for it from different dealers ($350.00) I am either going to keep it and try and get used to the weight of it or trade it in for a Tesoro Cibola. I am reviewing the Cibola as much as posible and it seems to be an impressive machine. One review about pinpointing I don't understand though - here is a copy & paste of the review (This Cibola really doesn't have glaring bad points, only a few minor weaknesses (and I emphasize the word MINOR.) It pinpoints well but I find I'm much more confident with the pin-pointing system on my Excel. On the Cibola, frequency increases as you close in on the target and then the sound disappears when you have centered the target. Often I wonder if I passed over the target when the sound vanishes)end quote.Got the review from here http://metaldetectorreviews.net/detectors/39-1-tesorocibola.html. I would think that the sound would increase as you pinpoint the target and it shouldn't disappear when you are directly over it. Would really like opinions from you's that actually use the Cibola. Thanks! Steve.