Getting a field cultivator to go deeper

[Botabill]

I thought the subsoiler was the right equipment, and the tractor pulls it just fine, it just won't pull itself down. The couple of times it did suck down, I had no problem pulling it.

People have recommended a chisel plow, how deep do these go? I know a guy around here that will come and chisel plow my yard, would that help me get the subsoiler to work?

Thanks to everyone for the advise

Can you post a photo of your subsoiler. Just wonder if what you call a subsoiler is what I do. I can't imagine a subsoiler that doesn't dive for the centre of the earth in any type soil. I have a Fred Cain SS.