*TLDR Edit for the thread* (Also, TLDR is a great podcast)
The Team Covenant templates do seem to make sense and are completely legal, and they were great about explaining how they made their templates based on averages of the cardboard pieces and the FFG acrylic templates, the latter being the best reference. (See the detailed reply on page 4.) It seems like the fundamental difference is that other template makers have copied what was currently in the end product cardboard, which varies from printing to printing, but TC has rationalized the measurements. All in all, I like these templates a lot and feel ok about them now that it's all explained, although the range ruler is just about a millimeter too short.
The banks are a little shorter than the cardboard by 1/2-1mm, and the turns are ever so slightly longer. The one big variation is that the 1-turn, which is noticeably larger:
As I understand it, this is a correction to keep even spacing between the turns, such that if you perform multiple turns in formation your ships don't drift apart. (I don't have multiple TC templates, but with the cardboard if you always line up flush against one of the pegs, two alternating 1 and 3 turns will drift you 1-2mm apart.) The metric they used was evening out the distance between the turns, which you can see if you line it up like this.The picture is at an angle and not fully lined up, but the distance between those templates is 6mm.
/* original post:
So I just got what I thought were the good templates and pulled them out to play and they were totally wrong. Some of them seem like they're following a slightly different curve and the turns are too long by about a millimeter, while the banks are too short by more or less the same amount. The markings on the range ruler don't line up either. Are there any that are reliable or good? I'm now thinking back to the number of acrylic movement sets I saw at my last tournament and really have to wonder how legit they were.
I don't want to say the brand since I haven't gotten a reply to my request for a refund and maybe it's just some big weird fluke somehow, but have other people had this problem? I was really bummed.
Edited by PenguinBonaparte