Playing with filters - any advice??

[GibsonGM]

Hi,
I'm trying to mess around with some LPF/HPF combinations to get some weird tones.  I like the %^&*ed wah sound, like Boston, etc. But, I find that with (my crybaby, anyway) the wah just doesn't really get 'that sound'.   If you think about that April Wine song "Between You and Me", the leads really have some filtering there....if I was using DSP, I'd be talking about about that Ohm Force plug-in.   Any analog ideas?  I'm wondering what the tunable notch filter on R.G.'s page could do, or maybe even cascading them?  I want to move away from distortions and phasers for a while, LOL....
thanks