But i have a second spot for an OD on my board and the agro got me so stoked,
i'm kind of tempted to try the pedal that has got so much praise and worship over here at talkbass.
I'd say if you can afford to try one, grab a B3K for sure. Easy to find on the classifieds (they come up a couple times a week) and even easier to flip back onto the classifieds if it's not your thing. I haven't tried the Agro, but I did think the AGS circuit in the Tone Hammer was awesome. I know they are not the same, but it was cool, nonetheless. Didn't sound like a tube amp, which is generally the direction I go with my tones - more to the vintage tube flavor.
I have a B7K now which I thought would replace my VT Bass but it has not so far. I agree with JohnK that there is something fizzy about the high end for me and it does not remind me at all of the tube amps I know and love. That said,the stuff I'm working on right now has a call for some modern grit + jazz bass action, and that's why I'm keeping the B7K. Let my P + VT do my vintage tones.
And again to the OP - the B3K is definitely different enough from the Agro, if you're concerned that having both would be overkill.
