Geddy used the Steinberger XL-2 for the entire Power Windows tour. He brought the Wal with but it never made it into the live show.
Again, from the top of the page, post #81...
"Grace Under Pressure is a much darker-sounding record; the bottom end is a different shape, and the top end doesn't have such a nice twang. Different sounds for different periods, I guess. After Power Windows was finished, I visited the Wal people, and they built me the bass I used in "The Big Money" video. They really build their instruments with a lot of care and take a lot of pride in their work."
Did you want anything special done on the bass?
"I just wanted to have it sound close to that bass of Peter Collins. The only difference was that most of the basses they make are in natural wood finishes, and I'm not a big fan of them. So I asked for a black one. The sound is slightly different because it's a more reflective surface than a natural. But it's only different in a positive way; it's probably a little brighter than the other ones."
What made you choose the Steinberger for this tour and the previous one?
"Well, number one, I wanted a different sound. I was sort of bored with the same sound I was getting. And number two, I liked the compact feel of the Steinberger. It's small and concise. For me, playing onstage surrounded by so much gear--keyboards, microphones, and stuff--it's a very practical instrument to use. I felt that if I could get a sound out of it that I was happy with, it would make a lot of sense to use it because of its shape. And in the end, I liked the sound I was getting out of it onstage. It's very ballsy-sounding. So the size and sound made it an ideal touring bass for me."
Are you using the Wal onstage at all?
"I'm still using the Steinberger onstage. I have the Wal out with me, and it sounds really good live. But until the show gets to a point where I feel comfortable enough to start changing basses from song to song, I'm going to stick with the Steinberger and slowly work the Wal into the show."
Tom Mulhern's Interview With Rush's Geddy Lee
And as far as I know...he never broke out the Wal on the Power Windows tour.