F5 or a Xterra50

I want to try a TID machine. Can any of you Fisher people give me some reasons to get the F5 over the Xterra50. Both machines are used, about the same price with stock coils. I currently use a Tesoro Vaq. and a G.umax  Thanks Tom

I would compare the options of the F5 more to the X70. Auto GB being the one main thing. I prefer the notch system of the F5 as it's easier to read and control. The X50 has more coil options as well as two different frequencies if you want to the find tiny stuff. The F5 has faster retuning. Like the Tesoro's, you don't have to use the PP button to target the find unless you want to view it's depth. The F5 depth display is 8"+ while the X50 is 10"+. I now prefer my F5 over my Deleon.