light brown on dk brown hair..turns red! Help

I figured the way to get a light brown w/out it turning reddish (my hair pulls red VERY easily) is to bleach it to blonde, then put a light brown color over the blonde.

I've gone to my hairstylist a couple times to get light brown-med brown highlights put in and she said she could do it in a single process (!)...which of course, didn't work--it turned orangey. I told her to do it the way I described and for some reason, she couldn't and I can't remember why...  maybe it was b/c after the highlights are bleached and washed out, she'd have to find them again to put the color on??

But the thing is she's had to find highlights before on me for some other reason, forgot why, and it was fine. So why would this be harder? I believe she thinks she has to color over all my hair after putting the blonde in and it would ruin it or something..

Thing is, I usually go for blonde highlights, have for many years. My hair is naturally dk brown. Its always worked pretty well. I went for light brown highlights a few times and it hasn't worked, b/c of what I described she did, above.

Most recently, I got lowlights (dker brown) as well as blonde, for a change, which looks nice.

Now I want to try light brown hilites again and the usual dk brown low lights. How I figure it, is she'd have to foil the hilites (lift) hair, foil for the lowlights (dk brown), rinse both out, then find the bleached hair and put an ash brown over it, rinse.
Now, isn't that doable? I'm getting it done tomorrow and I need advise b/c she won't listen to me.

Hey thanks.
I don't know what she used last time but it was one step and didn't work. Therefore I don't trust it.
I just want to know if what I stated is feasible. I think it is.