so i found a mechanical vacuum guage and added it to my pump, added about 5 in. to the top with where i added it, but also doublts a bit like a handle, i pumped it up to 7 hg and letting it sit testing to make sure theres no leaks , (NO NOT TESTING 7 HG ON MYSELF). i'll update you with the results, the where and how much. also i'm thinking this would be a setup i could transfer to others down the road.