I owned the Tejon for quite awhile. Traded it for a $1000 Browning A-bolt 338 Winnie Mag rifle. The Tejon was deep as all heck in mild to moderate soil, clearly the deepest hand-held metal detector I've ever seen, and the Vaquero is it's close match. The Vaquero processes FASTER in all-metal/disc, runs quieter, smoother, and can be used more pleasantly in high Fe soil.
I think I'm going to buy a Vaquero, it is a sweetheart, but it's not ideal on salt/black sand beaches, but a bit better than the Tejon. The cz's handle that tough stuff MUCH better, almost flawlessly. My cz beat the crappe' out of my old Minelab Sovereign on west coast salt beaches, and the cz cherry-picks faster than the Sov and EXP too.
The Tejon/Vaquero both recover faster and discriminate between targets close together MUCH better than the cz's. But the cz's ALWAYS trumped the Minelab multiple freqs and even the old Compass GoldScanner series in the harshest of soils - not dramatically, but enough that you would notice it.
I currently own the best cz ever made, the cz-70. It and my old Compasses are the only ones I'd keep out of all of 30 of them. The cz's handle bad ground better than anything else, maybe even better than the old single freq Compass GoldScanners series. The Compasses even beat the new Fisher GB Pro's for tiny nugget finding. On high black sand/salt beaches the cz's work better than anything else, unless it is a PI, and the Compasses come in at a close 2nd (1" less) with it's single freq at 13.77. The Vaquero will lose 2" and be somewhat erratic on them.
I would (not) trade my cz-70 or Compass GS Pro for any brand-new E-Trac, V3i, or F-75 currently made. Nor would I trade a cz3d for one either. I view these as the ultimate supreme all-around hand-held metal detectors ever made, especially the GS Pro, it being superior for finding tear-drop size gold earrings. The Tesoros Vac/Tejon do well, but not the best at finding tiny gold objects. The Omega and GB Pros are great too, but the Omega and Tejon are noisier, and the GB Pro isn't as deep.
LL