Would it be rude to ask my hair stylist this question?

I get my hair colored and it pulls red very badly so it took a few times to get the color just right. Her coloring is good but I don’t like how she cuts my hair so I go to someone else for that. I want to try another hair stylist that I think can cut and color my hair better.
QUESTION——Would it be rude to ask my stylist for the “color equation” she came up with and uses to color my hair without the red? I hate to start all over and not sure how this works or what stylist think.