You and I saw the same tour, Joey. Man, those were the freakin' days. Didn't know GL was playing Alembic that early. I remember him playing a Jazz and, for guitar, a Les Paul on that tour. I do recall him playing Alembic on the Works tour with the orchestra, though.
I switched from keys to bass for the same reason you did, even though I'd had years of organ lessons. Even a Hammond M3 required three strong guys to move and that was without the Leslie!