I built my Quest Tomahawk this past summer and it proved that I can not line up large decals properly.

I wonder how many other Centuri kits were never released?

I tried to tag the Estes ones in the Estes kit list. There were those that were listed in a catalog (#2145 Star Booster, 2152 Zenix, etc.) and those that were either posted on a newsgroup or on an online flier (2135 Pigasus, 2229 Saturn 1B (1/70), etc.)