At 60 years old I'm still playing small bars regularly and the occasional outdoor restaurant gig. I'm downsizing my gear to cut down weight. I've already picked up a couple of Hartke Hy-Drive 1x12s. Light as a feather. Now I'm looking at the MB500 head. Reviews are positive as a rule. I'd like the benefit of your real world experience with this head. That "under five pounds" is really appealing for a fat old man. Thanks!