Great collection of red Precisions, Craig. I never thought I'd get into collecting the 1/16 scale models that much. When I was growing up, I stuck to the 1/64 scale machines, because they took up less space, but when I saw the 3688 2+2, I was hooked and now I have 7 of these Precision models. An 8th soon.
Thanks for sharing the photos. By the way, judging from the rain cap on the 1466, it looks like you forgot to shut her down, after making room for the new IHs!