Or, get a good staining system like MiYO, and experiment by staining on the Vita Classic shade guide for getting the 3D color, then mill in that Vita base shade. It may help to keep you from dipping your zirconia, unless you don't mind doing that.
Awhile back, rkm had posted an image of a conversion using MiYO for a 3M1 on a D2 shade tab I believe. It looked really good.
Absolutely love this stuff, so easy to graduate among so many avaiable shades. 2m2 =A2 ,3m2 =A3, 3R2.5 =A3.5, and so on. But when you get into the more complex 3 D shades you won't get lost, just a mere adjustment only with chroma/ value. If it comes out of sinter a touch light that's perfect. Add a touch more chroma and by that lowering value at the same time. Really hard to just glaze any zirconia without some form of modification on shading. If that comes In, we're Out . Not yet