The Etrac is a great machine and has the flexability that a lot of other units do not have. I , like you, was able to pickup a CZ6a at a good price. The Owner purchased it new in 1991. He took very good care of the unit and when the weight was too much for him , he decided to sell it. Before he put it up for sale he sent it to Fisher for a tuneup. I like the machine so much, it is my favorite machine. The 5" coil is great for coin hunting even in iron. the depth for such an old machine is fantastic. I purchased a 8" coil and it should arrive next week. I have found that the 10.5" coil is a little heavy. My first find was with the 5" coil in a park.
when pinpointing it showed that the depth was over 8", which is the max on the display meter. It was a 1950 wheatie at almost 9". Unheard of for a 5" coil. Just as a note, I have a Etrac, T2SE, XP Deus and several older machines. But the CZ6a is my new (old) favorite. I like it so much, I am thinking of giving her a name, so I can talk to her when we are out.....lol
Tom in SC