Not handled one, but the multizero concept strikes me as being a 'solution' to a problem that doesn't exist. It's just a re-settable 5 position BDC.
...but I can't understand why a BDC limited to 5 settings is thought to be a good thing /ubbthreads/images/graemlins/confused.gif
by the by, I thought they were supposed to be bringing out their latest sniper scope this year (ZF07) with a 34mm tube...might be a better option, but have read nothing about it.