If you want a pushed tube amp sound, the BB is more designed for that (More Marshall type sound. The Catalinbread SFT is kind of the same thing, just with an Ampeg flavor). It overdrives quickly, but if you keep the gain almost all the way off, you should be good to run as an always-on tube sound. While it has a lot of low end for an overdrive pedal, it does have a floor (100hz i think), and because it reacts like tubes it will compress the low end and have less perceptible lows than if you ran with the pedal off. If it's always on, you can compensate with your amp EQ, of course.
As for running dirt in front, the BB has its own tone stack, so it may "eat up" the sound of a lot of other stuff in front of it. It can tend to clip very quickly with other overdrives and fuzzes or else squash them. Some pairings work well, though.
I think the Pork Loin might be better for that scenario. It doesn't compress nearly as much as the BB, and it fills out the low end with low gain drive. It's great as an always on, subtle effect. It's not as tubey in sound or behavior, but that can be a good thing. It works great as a more saturated sound that doesn't compromise the low end. If I recall correctly, it doesn't get overdriven with other pedals in front as easy as a lot of preamp-style pedals like the BB.
In my opinion, what you are describing can be done well with a Darkglass VMT. It can cop all kinds of old tube amp sounds and pairs really, really well with all kinds of other pedals. And it doesn't clip like most other overdrives with other dirt in front of it.
Eat all your veggies. And don't bang the dillies.
Last edited by jumblemind : 12-04-2013 at 09:53 AM.