RoadQuest....I do not own a Vaquero so cannot compare it to anything!.....I do have a 1266X and it really goes deep and is very sensitive!....I just got mine but played with various ones from friends for years.....mine does a lot of clicking over rejected targets...the higher the sensitivity the higher and louder are these clicks!...so in my learning phase I have set the sensitivity on minimum till I feel comfortable with this detector!......Joe