The McHenry's in HO have had mixed reviews, but so has everything but the Kadee #57. I love the Kadee ad asking "how many other couplers will you break before you use Kadee's?" Kinda sums it up. At first glance, the McHenry shank looks at little longish, ala AccuMate(for sharp radii, I know). I'll be glad to give the McHenry a fair trial, like the AccuMates, before making any judgements. We'll see how they work in long trains.