Just got my Maze 4 today.
It will cover 98% of a 40mm TEC. it will miss a little bit on the corners but it is coveres by water channels the 98%. The top was laser cut and engraved (something I can relate to
), the finish is pretty good. They sand blasted it and lapped it pretty well. Dosn't look like this one needs re-lapping but havn't looked it over to carefully yet. It even has 2 "warranty void if removed" stickers! I will have a whole write up on it in the next few days with plenty of pics....