You shipped him enough for sixty before he even tested them? Look, it happens all the time. Your want for it to be something as you were testing may have made you a bit overanxious. Retest and post your data sets. Ambient air at rad intake, water inlet temps, and cpu load temps (case temps mean nothing). Do so at least three times with three different mountings for each setup, stock with turbulators, no turbs, and your new turbs. That would be a minimum of nine data sets to show people your conclusions. Then perhaps if there is doubt it can be directed at and resolved through your test results in a more civil manner.
BTW your sig shows a 12.8C water delta with a 99watt heatload, very hard to swallow also. Check you water probe placement and use burnK7, also use voltage shown when at full cpu load. 1.95v, as shown in your upper post, is a 94watt heatload and 2.0v is a 98.9watt heatload as shown by computernerd (even lower at benchtest). You must abandon the tendency to fudge