Ordered a sheet of regular standard sized glass for $37, Bob was awesome to deal with! The glass is a bit thicker then 3/16 of an inch as it fits snug in my High Speed pinball machine(old glass slide in easier and seemed heavier and thinner.) Is tempered glass heavy or suppose to light? There was a big difference in weight between old and new glass. Game appears quieter now, because of the thickness of the glass. Another good thing was he was a local pinball glass shop and I support local business as much as possible, especially pinball related.Also no Shipping involved which is a huge plus! I really dont think the "Ultimate glass" (The clearer glass with no green color in it) would have fit in my HS, as the Ultimate Glass is 1/4" thick and this regular sheet fits snug in the rails already. Phoenix area pinball folks get your glass from Bob at http://www.pinballglass.com/index.html. Just thought I'd share a positive experience with a local pinball glass shop!