Hi... While I bet that color is not going to be printed anyway...
Use a high gloss vinyl even if u are going to laminate...
In plotter menu u have a multistrike option... Move from 1 to 3...
Make a new profile adding a delay of about 5 seconds, to be sure, between strikes
Asure you have like 40c on heaters (if room is cold you will have problems with curling)
Add a new linearization... If u dont have an i1 or similar take another linearization, print it and limit amount of ink if colours bleeds too much
But without an i1 (and even with it) isnt an easy task (or at least not profitable lol)... You should send to anyone with a 6C roland machine with green inks....