I had this on IW and just so happened I saved it. The following are steps that I go thru, of course it will very from time to time to but over all this is my approach.
Controlling the gmesh point, hope this helps but keep in mind that I’m new to this also and do it my way. Here is what I can recall doing when working with the mesh tool. GO here for now to check out the images I will be using for what I have described below.
I added another small thing I use when working with Circles, go here to take a look.