After hooking-up, I don't back the MH up, either. I pull forward [gently] and turn the steering wheel of the MH side-to-side a bit. The tail swing of the MH is enough to get the towbar to latch.
I agree ... to unhook, I turn the steering wheel of the toad side-to-side a bit to get the levers to unlock. Unless on perfectly level ground, we almost always need to do this.
Ken & Deb (WIT Club, FMCA, SKP, Harvest Hosts, and grateful volunteers with SOWERs)
2005 Winnebago Vectra 40FD w/400ISL and Allison 3000MH on Freightliner's Evolution chassis, Onan QD7500, 1000w Renogy solar, BlueOx tow gear, and 2015 Cherokee TrailHawk toad.