Médiums Tri-Art - Gesso d'Ombre Brûlée

I bought the "new " Ultramarine blue , because it looked good-slight more vibrant,bitmore intense. But until you test it, I don't exactly know how it will affect and behave with other colors. When I mixed it with alizirin-crimson, or med red with TI White , it turns to a WA Grey, not COOL Grey, which I need. Now I can not match my previous cool grey from a classic Ultramarine Blue.
Essentially the difference is that Classic Ultramarine is a red shade vs Modern which is a red shade blue. Tri art meedf to stipulate this on the web site when selecting classic vs Modern. Having said this, can I send this back to have it exchanged to classic Ultramarine Blue?

Good dense black

Tri-Art Mediums - Crackle Ground

As an oil painter with 25 years of experience, and working professionally since 2017, I’ve experimented with many of the big-brand gessoes, but I consistently find that Tri-Art’s gesso stands out in terms of quality and affordability. It offers an excellent tooth and a great absorption rate for oil paint, making it ideal for my work.

For full transparency, I have collaborated with Tri-Art in the past, testing their oil paints, though they didn’t quite align with my particular style. However, I am not sponsored by Tri-Art and genuinely recommend their gesso based on my personal experience.

The best. Beautiful texture. Thanks Tri-Art