What didn't sound good about using it with a Wal? My main bass is a Wal MKI. I would like to hear what you thought about the pedal with your wal. Alot of my effects act very differently with my wal than my other basses. What did you like and not like about the rhino with your wal? Thanks for any information man.
First off, I should say I play with a pick, which sometimes is left out of the discussion when comparing gain pedals, and unfortunately for us pick players, lots of demo videos. Also I use Mesa cabinets which are pretty bright.
The Rhino broke up in a great way with my Jazz bass, and brought out some scream in the mids where it's a little lacking. With the Wal, the tone itself is pretty ringy like a piano string and the active signal is hotter, so I didn't feel like I could turn down the gain enough. In general, when I'm playing one of my passive basses with gain, and I shut off the distortion pedal, it suddenly seems dull and less dimensional. This is not the case with the Wal really, so I end up using not much gain, and the Rhino didn't excel in that department. The Pork Loin was just OK.
I've had a similar experience in that many of the gain pedals (MXR M-80, Bass Drive, Green Rhino, Elements, Rat Tail, etc..) I used with J's and P's didn't work well with my MK1. My best guess is that those pedals add a fair amount of color to the sound, and that's not what I was looking for with the Wal. Also, it's possible that because screamer type pedals and the Rat Tail are pretty mid prominent, and the Wal is so full range, not a little weak in the mids like some J's are.
That wouldn't explain why the M-80 isn't so good for it, because it's distortion side is pretty scooped, but then a lot of people aren't too crazy about the gain sound in general. I think the Darkglass works well as long as long the drive isn't too high. Right now I'm using a VT Bass, because you can turn the gain down and the EQ works pretty well, but still on the lookout for the right thing. Also, the Rusty Box (totally different from the VT) is working well. Honestly, and this can be a daunting task, what is sounding best to me right now is combining pedals, even for low gain, i.e. M-80 (gain on or off) or Rusty Box, with pedals, even guitar pedals like M-80 with MXR GT-OD, or Rusty Box with B3K. Maybe Rhino with M-80? I haven't tried it.
Sorry to be so off topic, but I figured I would share some Wal info.
Good Luck!