QUESTIONS:
What types of sites do you usually search?
Which h search coils do you plan to use?
What types of targets are you generally searching for?
What detectors have you had, do you have, and why do you want one of these two Tesoro models?
Are you planning to buy brand new, or are you shopping form a used Tesoro?
COMMENTS:
In think we need to make sure what operating features we want before making a purchase of any detector. For example, I do usually hunt in the motion-based Discriminate mode, which is what most people do. However, I also delegate a certain amount of hunting time in a Threshold-based All Metal mode, which is what few people do, and when in the All Metal mode, I like to be able to quickly shift to the Discriminate mode to check a target signal. To quickly shift between an All Metal and Discriminate mode you need to have a touchpad, pushbutton or toggle to make the change and not disturb the Discrimination setting.
I can do that with most of the detectors I own and use, such as my Bandido II µMAX, and I can with an Outlaw. You can't with the Vaquero because it doesn't provide the two separate mode settings. You have to adjust out of the Discrimination setting by turning the knob to click into All Metal, or turn the knob and adjust out of that mode to select a Discrimination mode setting.
I also like to hear an audio response that is more 'informative' and as some better audio qualities to it, and I get that with most models I use, such as my Bandido II µMAX, and I got similar audio benefits with the Outlaw models I have used. I've owned some Vaquero's and parting with them, quickly, was partly because I just didn't like their audio quality.
SUGGESTIONS:
Try to find a local Tesoro Dealer. I know that is very difficult these days, but give it a try, or if you are a member of or can visit a local metal detecting club, perhaps someone there owns the models you're shopping for and they can let you check them out. Listen to the audio. Use the Discrimination to see if it rejects iron and other sample targets as you would desire. Check the 'feel' of the foam grip for firmness and quality of fit. Check out the controls and see if the mode choice functions are satisfactory for you.
Also, decide if you want a NEW detector or a USE detector. I just could be a different model might satisfy you if 'used' is on your shopping list. An example would be a nice and clean Bandido II µMAX model.
I do not NEED either of the models you mentioned, but I WANT one of them for my personal use and to use in my seminars, therefore it needs to be versatile / functional, and that model is the Outlaw. So, my suggestion is to shop for an Outlaw, if you're looking to invest in a brand new detector, to benefit from Tesoro's Lifetime Warranty to the original owner.
Monte