I already have a thrust program on my computer. I fing the chart from MM kind of confusing. I was hoping to hear back from real world experiences,specifically from someone who has tried a 10-7 prop on an FX40 and an 11-7 prop on an FX46. I guess I can just put the prop on and see what happens but different props definetly work better on different airframes and it would be nice to have a starting point.