I was just thinking that as much as I love my XTerra 70, the one thing that is starting to get under my skin and I think may ultimately be the Achilles heel for the Xterra series is the fact that you cannot buy aftermarket coils for them. With the popularity of the SEF butterfly coils and accelerator coils, I would love to have the option to try them on my Xterra 70 but Minelab apparently refuses to allow that to happen for some reason. There must be too much information in the chip that is housed in the coils for the Xterra series. It is a slap in the face for me to see that I can buy these coils now for my Ace 250 but not my Xterra. I'm still going to stay with Minelab because I still beleive they are the best machine for me but the proprietary approach to coil selection is now a thorn in my side. Just venting, I guess.