Ze, While I am no pro... I have cuffed many hogs in the woods and yes it is difficult to undertake at times. We used to use (still will at times) cuffs as a quick hobble method on dog caught hogs until we started using hog hobble ringed straps...
I am also aware of sub-grade knock off cuffs. Had a set strip open one side when we put a hog in the pen and we had to get in there with the dogs to get the other side open which resulted in a dog getting cut.
These I was given are full pro grade S&W brand.