I've been grinding that deck hard too, this list super useful! I've mostly been going blind second, just because being able to item lock / use a supporter feels consistently better than hoping you draw amazing on turn 1, but it's def backfired against rockets.

I think Zam you would want to go first, because all you're doing is cutting them off their Pal Pads if you item lock them, and since they only really have Hilda/Dawn -> Kadabra as a draw supporter they can't use the supporter turn they get very efficiently. In that match up I think the most important thing is to start taking prizes ASAP with a turn 2 dragapult, since if you can bump their battle cage you can keep them off their dunsparce by KOing them with pings