Hey ME,
I bought a brand new Quattro last year. I've heard so many people bad mouth Qs, it had me wondering if I had been a little slow when I decided. I have added a 5" coil, and now a new procoil. My finds, especially silver, jumped dramatically as I learned to use it.
So, for what it is worth I think you obviously are not a novice hunter. Other than your choice in hunting partners, you know what you are doing. I think you would make an E-Trac just sing! If you are going to go for the gusto and get a new machine for the difference in cost from what I've seen the E-trac would make you a happy camper. Don't quote me on this, but I think you could actually program and save a "zipperpull" program!
But, most important, you would drive GG absolutely nuts!
Good Luck,
mark