I was told the "production" models of the 100 amper now all have those big 5R025s like my prototype adjustable's. However, my prototype (based on a PM3-100)also has the new front end layout, which it looks from the other photo that the regular PM3-100s now have too.
I don't know where the shop is where they get the big thermistor attached on the regular models now. Are they back-fitting PM3-100s left in stock? (PM but not Randy still sells PM3s even though PM4s have since come out) Do the PM4s get theirs OEM in China?
The legs on those are really fat so I can see why they don't drill new holes in the board but get them stuck on from on top which takes a bit of fiddling, winding the old thermistor's thin leg on top around the cut-off fat leg and soldering it all. It works ok but it does look sort of ugly.
I would like to see inside a production OEM PM4-100 and see how they got the thermistor on the board, but of course I have no "need to know." :)