Down below Survey Dawg states he uses a 12° default mask.

I start with a 10° mask and take a good look at all the data before I try other mask angles. 15° or 20° for final.

I cannot recall that I ever found an odd angle was required for a good solution. Above 30° I have seen movement that I do not like. More likely than not above 15° or 20° you are better off to exclude certain satelites than exclude all the lower data.

What Mask ° value do you use?

Paul in PA

I start with 12° with L2, and for L1 only I use 15°. It is possible to see great improvement with a 1° mask change in almost any range between 10° and 28°.

Way too many times I've seen results below 12° go astray

YRMV

jd

I think mine is 10 . . . just like everyone else who owns a ProMark2.