G2 comes with these add ons for Longhaul. I never cared one way or another about parts forming but after having UW Devvy and Jin Bao oversized Warbotron, this set is by far the most stable combiner I've come across. My ab crunch ratchet has a bit of play in it so it can lead forward a bit but position the feet properly and the weight distribution means constructor can stand more upright. I guess, with the separate waist part, I could more easily fix that play. That's my only real gripe. Anyone know if this is a common thing, the play in the ab crunch ratchet? Is there a fix?