Hobbycraft did 3 distinct versions of the CF-105. The first one had a major flaw in that the actuator fairings on the wing were molded on the top of the wing, instead of the bottom. This was corrected in the 2nd version. Otherwise, the two kits were identical. The boxes changed a couple times, and the decals improved slightly over time as well. However, the actual shape of the aircraft was still wrong in a lot of places, such as the fictional coke bottle bulge just behind the intakes, which doesn't exist on the real plane, and a cockpit that is similar to a 1960s kit in detail. The exhausts also sport what appear to be turbojet compressor fans, a very odd place for that particular bit of gear...In a lot of ways, it appears to be based off the 1960s release by Aurora.
Hobbycraft lost the rights to most of their molds quite a while ago, and the Arrow was also appearing under the KiTech brand for a while. I Assume it's the 2nd version
Hobbycraft came out with their last version of the Arrow um, I think about 6 years ago. It was a brand new tooling, and the detail was better than the first versions, with the bulge now being eradicated. The decal sheet was much nicer, and the canopy and cockpit were improved, but still flawed (pilot's canopy has incorrectly shaped framing). I've not checked dimensions to see if it's closer to 1/72 or not.
In any case, it was the only game in town for injected kits.
Hey look, Al's a Closet Rivet Counter!
Alvis 3.1