Dont know whats been done but f19 is finding the relics..

[Joseph in Alabama]

Been able to get out half dozen times last several weeks going back over areas hunted with other good detectors...old home sites gone with time and some CW sites...
F19 is pulling some brass/lead etc..seems to really hit hard on brass..
Pulling relics with the 5x10 coil length of my garrett PP ..and thats with tone still solid/and numbers
I like it.. hh. joe

 

[still looking 52]

Nothing but good reports on that f19.

 

[jim tn]

I keep hearing good things about the F 19 as well. Good luck on those CW spots. HH jim tn