I have a project comming up in a couple months and am planning ahead. I'm going for a really heavy warm big rhythm sound (like everyone else in the world). I'm all tired out of using one 57, I've done it too much and feel the need to add something to it. What do you think? 57 and a cascade fathead (probably go with the stock one cause by the looks of the frequency response it would work better for this application). Im really really leaning towards the fathead. Or 57 and md421. I've always wanted a ribbon, and really want it to sound like what it does in the room. I don't want to use all three to avoid phase problems and because I only have two nice preamps.