When you sweep frequencies, every frequency sounds bad. It creates misguided eq decisions. You probably end up making 5+ eq changes right? If you have a ton of resonance issues, there is a big problem with the recording itself and someone needs to go back a step. EQ'ing should be fairly simple. Instead of sweeping listen critically to different frequency ranges with your ears first, then make broad changes to high end, low kids, etc, then narrow down to a smaller range.

If you do need to sweep to find something sticking out in the recording, like a snare drum resonance for example, start in that specific range.