I’m also using SGP with EQMOD 2.00q on two Win7 machines and not having any issues. I have the sky model set to “Append on Sync” which adds new sync points when I do a plate solve from SGP’s control panel. Plate solves of images and those done using the mouse and the “center here” right click option on the currently displayed image do not add sync points.
My sky model has 4-5 sync points in each quadrant; one very close to the zenith which serves both quadrants on one side of the meridian, three defining the horizon for that quadrant and one located near the center of the quadrant. The pointing model is restricted to use points on only one side of the meridian and uses the triangle pointing model. This arrangement usually locates all targets within the center 10% or better of the imaging chip with both of my Atlas mounts.