I've mostly been happy with the quality of Starrett. They lost a lot of business to the less expensive newer brands and did not do so well trying to bring their costs down by having parts made elsewhere. The quality of their tools made in Massachusetts never seemed to be affected but just steadily became really expensive. A 20-12 12" master square is about $600 and another $100 if you want a wooden case!
I've always been happy with the quality of PEC. By 1980 or so, PEC was selling tools that equaled Starrett in quality for less money. They were made in California. I've toured the factory and saw tools being made for PEC, Fowler, Mitutoyo, and a couple other brands I've forgotten.
HJE sells PEC seconds that may have any of the brand names above on them but they are mostly PEC. In a business, I bought 100-200 PEC seconds from HJE. Most of them are hard to tell as seconds, usually just a small pit where the finishing found a void in the material. They name has a line through it so that PEC knows not to warranty them as firsts. The worst defects were on the head of the 12" Combo squares where the groove had a defect in the grinding. They still lock up square but clearly will not last as long in use as a first. I did not send those back as I though they were still worth the price even with that actual defect. HJE is great about returns if you find an actual defect.
If you want one of the unusual PEC squares or a case, you won't find it at HJE.
I have several brand new Starrett 13A 4" double squares that my customer paid $70 for. The PEC 7104 is every bit as good and is 40-45% less. The HJE seconds are 99% as good for $12.
Anyone want some new Starrett 13A 4" double squares still in the box for $50? That's about what I will net if I sell them on eBay.