kansa54,
Well Clint, it's like this, many people have opinions on what is best for them at the time. Metal detectorists are a funny bunch, buying and trying all the time, some of the guys on here buy and sell detectors every week. I know several people that do this, but I stick with what works for me, heck, I have an old Tesoro Toltec ll that I bought new in 1995. I still have it, and I have read negatives posted on the Toltec ll, but for me it works great. I would not put a lot of stock in what is being posted about the Vaquero, if it works for you, then that is great.
If you are worried that your Vaquero is not working up to par, bring it down to my house when you get the time. I have a bunch of older analog machines that are deep and accurate that we can compare it with. We can test your Vaquero out in my old test garden that has planted coins down to foot deep. Then you will have some valid test data, you got my phone #, give me a call sometime we can shoot the breeze.