Lucked out today with the Garrett ACE 300i (International version). Lots of coins and bling. The steel ring read 41 on the VDI and the grad ring at 91. Most of the targets in the 70's are pull-tabs, and all the better targets are in the 80's and 90's. That 18 x 25cm (7" x 10") coil is just the right size. It gets good depth, yet has great separation capabilities. I always pin point off the inner front toe of the coil. It's mach faster, more accurate and gives you information as to a targets depth. See the instructions below on how to do it.
https://www.youtube.com/watch?v=DoLvboex7sM