Well, I based my research on actual size comparisons of 1:48 and 1:72 scale model kit figures compared side by side with actual 15-28mm miniatures. The 15-20mm range almost always comes out to 1:72 scale, and the 25mm range ALWAYS comes out to 1:48 scale. I'm not talking about the tanks, vehicles, etc... I'm speaking only of the crew figures. As my example in the first post showed, I used the crew figures from the Robotech Defenders kits (as well as from various model aircraft sets) compared side by side to the Mechwarrior & BattleTroops miniature figures by Ral Partha. They came out to EXACTLY the same size, and the BattleTroops figures were measured at 25mm. So, I tend to stick by my findings, especially when modern made 1:48 scale aircraft/armor crew figures are still measuring the same size.