M. Toulouse Genesis all the way.
It's soooo easy and quick to adjust, and with millimeter by millimeter adjustments options, you get a fit 10x better than you ever could with the EC Gullet plates that Bates uses.
Side note-I went into Dover to compare leather quality on some saddles, and Bates was honestly the poorest leather I'd ever felt for a saddle of that price, and expected caliber.
I don't know how well, or how quickly they soften up, but buckets of oil flashed through my mind when I felt it. They're made by Wintec, so it didn't really surprise me. It's a sound brand, don't get me wrong, but I like my saddles supple and workable.
I've never oiled my MT, just conditioned it, and the leather is like it's a ten year old saddle right out of the box.
Wither tracings and careful measurements are great, and 100% beneficial, but you have to remember, your horse changes shape through the work loads, so that's where frequent saddle fitting checks (by a professional is even better), and adjustable gullets come in. The saddle that fit your horse when it was three, is not likely to fit them as a five year old.
"You're just as sane as I am."~Luna Lovegood.