Your 20 mm axle fork had the PCS damper? I had a 20 mm one but it had the older damper in it.Nah pretty sure they said that the minimum was 150mm, I'm happy with the Mezzer, don't think I'd go back to a Suntour now. Durolux was cheap, tall, had easy travel adjust and a 20mm axle which was what I wanted at the time, now they don't have 20mm axles or easy travel adjustment and they have the same damper which leaked pretty quickly in mine, oh and the bushings were pretty sloppy too, still better than a Z1 though, hahaha!
What was wrong with the Z1?