Doug Irwin lent me one of his Irwin Bass's to try out at a gig once with the option of purchase. The one that he lent me had HI-A ( early bartolini) pickups) It was a coffee house gig so I seriously needed to keep my dynamics in check and as a result was not able to really do all I would have done at a louder gig, I took it to a jam later and was abel to push it a little harder .The one I had was a nice instrument , response wise and the Hi-A 's were OK, but NOT Alembic . I ended not keeping it. In retrospect perhaps ; I should have purchased it and gotten Alembic Pickups and electronics, however as I recall at the time Alembic Activators did not exist yet . I do know someone who has an Irwin Bass with Alembic Series I pickups and electronics and that bass sounds great . I played it not that long ago. It has sliding pickups !