Saltus arrived, and is everything I had hoped for. Feels great in hand, transformation is just the right balance of intuitive and interesting, and aesthetics are spot on to my taste. Went from vehicle to copter to bot in 15 minutes, without any sort of instructions. I didn't like the Ox style head, thought it clashes too much with the otherwise bulky features. So I went straight for the G1 face. Then I wanted to replace Big Spring, and thought I'd try something while I'm at it... and io and behold, how well the Ox head works there! (I mean fitting aesthetically; properly installing the head would require carving an adapter piece.) I suppose I'll keep both now, one as Rookie Springer and one as Hardened Warrior Springer.