Okay. I got it worked out now. Still has broader Q for boost and narrower for cut, but it's much more usable now.
New values are:
220Hz = 1H, 0.52uF
360Hz = 1H, 0.2uF
700Hz = .6H, 0.082uF
1.6kHz = .3H, 0.033uF
3.2kHz = .1H, 0.025uF
4.8kHz = .1H, 0.01uF
7.2kHz = .1H, 0.048uF
Measured them in real world with frequency sweeps and everything looks much better. The cuts go down to -10dB in just about all cases (one or two frequencies only make it down to about -9dB, but I'm not gonna lose sleep over it).