Blackjack is the same... they don't plug in tightly enough, or in enough to hold well.
What a bummer. I was actually going to get an extra TAV Runabout (is that what they are calling him???) to be a chest plate for UW Menasor.
I have a list of all G1 characters that have been released in CHUG form. You can find it here. Please feel free to let me know if I got anything wrong so I can fix it.