I should have, you are right 
I used the Trochoidal milling setting from Estlcam:
Tool: Makita 701 with speed setting on number 2
Bit: 3.17mm 2 Flute Endmill (cheap china brand)
Cutting Depth: 3.5mm (meaning that only one pass was required - this works very well with the Trochoidal milling)
Screenshot with the rest of Estlcam settings:
