Eric, BTW I shot a 207-20X on our SMT target becasue I use a Monard jacket

(More attempt at humor)
Well there never as has been an argument that a closed system isn't more accurate, it will be for the reasons stated nobody is arguing that. Closed systems are big, bulky and expensive and in many circumstance won't work for those respective clubs on people. In our case and in many others the SMT is the better solution. The disagreement has been since the original test done by the HEXTA marketing director (Bruce Daniels) without any SMT personnel present that the test was biased and that the setup was bad. People who have the SMT targets who use them personally or at ranges have never had such error issues as reported in the first test done by Bruce. Now I did a quick glance through the test and from how they described it does seem to be better. BUT given the history of the first test where Bruce conducted the test and then claimed not to be associated with the company one has to wonder about those people who are conducting this test. I question the last target where it has less error that there is a shot that is off by 3' to skew the data. To me, someone who has a good bit of skepticism from the original test, I question how something like this just happened to appear on the best data set, where aside from this shot the numbers are better.
This is a business and KTS, HEXTA and SMT are competing, again I just find it ironic a couple months after some more ranges when with SMT than another test that comes to light with someone associated with Reade/Bridgeville ranges pushes a certain view points and thus pushing either actively or passively one product over another. This is why the tests are always HEXTA vs. SMT, why never another target system? I'm guessing because the one brand is financially doing better given the ranges that are deciding to go with it and the other is just trying to stay visible. The SIUS targets that are signed off on by the ISSF have 2mm eror in the center and are 7mm as you go farther out (as mentioned on accurate shooter thread on this topic) and is a closed system. Why not an extensive test of HEXTA vs. SIUS or vs. KTS? Compare apples to apple, i.e closed vs. closed.
Now from the tests yes they are interesting to look at. As a MD for a club who are now up to 12 SMT targets am I concerned, no. Wasn't an issue for the US Marine Corps either when they decided from all the electronic targets to select SMT and put 25 of those targets in at Quanitco this past month or so. Bruce was there personally doing the Hexta setup and demo for the Marine Corps, btw. Looking forward to our upgraded 8 mic systems as we get them, but all in all we are happy with SMT targets.