let me know how yours work out i have the same setup. only i have a six colour and not a four. signwharehouse has the proflies. and also oracal and 3m. i use oracal 3651 profile mostly. 720 dpi by 720 dpi. i have mine off most of the times so every other day i print a picture very small 360 by 360 to keep my heads alive and i do a nozzle check every day and a clean every night.