How does the Vaquero compare to other machines? Just bought one, Its better than my sand shark (air test only) and I know they are different machines. I like it better than my Nokta golden sense for the following reasons...light weight, 9v battery, has discrimination, warranty. I haven't used the Vaquero outside yet but the Nokta did have good depth....it just fell apart and was 2 heavy. Thanks and happy hunting