I concur, finally transformed my Grinder X to Dino mode and it is glorious! I prefer it over the bot mode, as good as that is.
I sorted out the issue with getting the tail pieces out from the leg by loosening the screw and pulling the tail out a bit as suggested by FT. Now I can unpack the tail without scratching the chrome. Thankfully the tiny bit of chrome I scratched on one tail piece can't be seen in either mode because it's on the underside of the tail in Dino mode.
Also looks like I may have secured Stomp X. It's a big overpay but will complete my X set.