For some reason, I can't do weekly dosing without getting crazy accumulation after a few weeks. My plants use very little for some reason, even though everything is abundant. My NO3 never bottoms out like some people, I don't know why. It's always at 20 at lowest. I had a problem before where I was dosing EI and NO3 was showing 80+, (blood red test). That's why I dose about 10ppm once every few weeks when the test shows about 20ppm. As for PO4, I dose 2 ppm weekly, also never bottoms out.
First of all I agree with Burr (that's easy to do!) about increasing macros.
But you bring up a mistake I think many people make. They dose based on a preconceived notion as to what they think their levels should be, not where they actually see the best results. In your case, you mention crazy accumulation and a problem with a blood red NO3 test. Those aren't problems in my book.
When I started out, I was convinced that with my heavy fish load I should need to dose very little or no NO3 or PO4. I expected it to be true, and I wanted it to be true. Funny thing is every time I raised my dosing, plants did better. Every time I lowered it, plants did worse. I went through this cycle many times.
Now I dose MORE than EI into a heavily stocked tank. If I based my dosing on not bottoming out, my plants would hate me.
Just saying, don't be afraid to experiment, and don't rely on your preconceived notions. Rely on what the plants are telling you.