I measured the main jet on this new carb.
.033 in / 84 to 85mm approx.
The carb its replacing ran best with a .029 in / 74 to 75mm approx jet.
So it appears as if I'm in a reasonable range of jet and shouldn't go bigger.
The prev carb was a pz19, better suited/designed to 4 stroke I believe, but it served me pretty well for a while.
I was really hoping that this more two stroke designed carb would be a big improvement and hope to use it on my airsal 44mm kit this winter.