Tuning with those big round bearing edges

I have a set of C&C drums with those big rounded edges that I'm using for rock and I'm struggling with the tuning. Tuned low, they sound great behind the kit, but out front they completely lack resonance and sound like cardboard boxes. In order to get them to resonate, they seem to need to be tuned very high and wind up sounding like a jazz kit. I have a 13" side tom along with a 14 & 16 floor. The 16 really needs to be tight or it's really dead. Also very difficult to get enough spread in tone between the drums.
I've tried single & 2 ply heads.
Other than micing, anyone have any suggestions?

Tuning with those big round bearing edges