As Shep says, get the LPF (& an EP-2). I use mine for just about every style of music & is very useable in a rock situation, especially if you're wanting just bassiness coming through during the verses & opening it up on the choruses to get things rocking & so forth.
The drive on the LPF can be kept down pretty low if you don't want drive on your sound, but for rock, why not?
I also have a Bass Murf which I love to bits (& it's true bypass with a level adjust for the drive to keep it in check), but I would try one before considering it as it may not be your thing. It is a very unique pedal.