eliptical concentric coil for atp?

[bigfoot1]

I am wondering if any of you are using the 7x10(i think)eliptical concentric on your atpro.I ask because on my ol trusty gtax 1250 the 9x11 dd is noticably shallower,a bottle top magnet,and heavy.target id also suffered.
I have always liked concentrics but dont wanna lay out a hundred bucks without hearing from one of you all first.

cheers

 

Amazon Forum Fav 👍

Minelab PRO-FIND 35 Waterproof Pinpointer Metal Detector for Experts with Tone ID & Adjustable Sensitivity - Grab it through Amazon!