I used McHenry couplers for a long time when they 1st came out because they were cheap. But, you get what you pay for. I run long trains w/real loads of coal & heavy loads on flat cars. Kadee's are the "ONLY" coupler that will hold up. The McHenry's break, rip out of the coupler box & won't stand any falls from the tracks. I've also tried many others & had the same problems. I also run some Euro equipment on my layout & the Kadee's are the only one's that stay together.
I've been doing HO Scale since 1961 & back then there were not many choices. I set my couplers on every piece of rolling stock & engine that I have right out of the box. I also use a Micro-Mark coupler heighth gage. To me it's a lot easier to use. Everyone thinks that every item that they buy will match up together out of the box--NOT TRUE--. That's why there are reg.,upper shelf & lower shelf. Long Shank, short shank & close shank. I have 3 compartment boxes w/all kinds of couplers, coupler boxes, coupler box covers, coupler box shims, snap box covers, spring latch covers & snap in box covers. I've also got tons of the old steam engine Kadee couplers.
If you can put 35 coupler springs in 35 couplers in less than 70 seconds then you can learn how to change anykind of coupler to fit whatever you have on your layout. Patience-Patience-Patience. Now, if I had "N" scale I would be lost.







