Got the DIP extended base. so the VGM would not move, the J&Ps did not workout. not there problem... mine....
here are some pic of the DIP Base. It seems very well built!
Here is a pic of the VGM on top of the DIP. at 50 yard zero
Here is a pic of the VGM on top of the DIP. at 500 yard zero
and here are some other pictures of the VGM on the DIP