you guys... i agree, too. it's not that i want to get rid of all improvements and get back to my pod. but sometimes it wouldn't hurt to have a few fucked up and ready profiles at hand. not instead of the others, but additionally. for quick and dirty headphone brainstorming for example...
FWIW
for a typical lowpass/highpass scenario, try a Lowpass with Manual set between 8.6 (about -3dB @ 5k) and 9.0 (attenuation begins @ 5k, but doesn't affect 5k)
and Highpass Manual set to 0.5 (removing stuff below 50Hz)
Peak both times @ 0.