I don't know what he used for a comp but I doubt it was the M87. But there is a little squashy comp going on, isn't there? Eh, try it on a mild setting.
You could do it the chicken way...email. He has a band with the former drummer for Heart and they do Heart songs. I don't think he's averse to Heart cover bands. He's a big SVT guy and has been for a long time. That helps
Saw him once...Bebe LaStrange tour. Changed basses after every two songs. How do you even keep up with that many basses? I have a hard time playing one. http://www.heartbyheartband.com/contact/