Are you slinging him? You can use the sling (a thin long towel works well) as a stabilizer for him, let it be loose but just a bit so that if he slips it will catch him.
I definitely agree with the extra carpet. Where you can't be pretty (I'd say 100% but thats never really possible with something that has his own thoughts) certain he's safe from slipping I'd sling or carry him. It IS good to get him walking, but its good to be safe, too.
The dogs that I saw that reinjured were fat WINGNUTS - hyper, out of control, leash pullers - think big stupid lab. Connor is not a wingnut, so you guys have that to your advantage for sure.
Are you icing with something flexible? Like gel, or peas? And are you using a towel over it? These things may help if you aren't already doing them. The shaking might be anticipation, too. When I clip Oscar's nails he shakes, and I have quicked him, but not often at all - I know I'm not hurting him because he'll pull back if it hurts, but he is afraid. It may be something like that. This from the dog that hurls himself into cold water, regularly gives himself small cuts, and broke off his own teeth on a can of dog food
Anyway, I know its tough, but you all hang in there, I'm sure you'll all be successful with this. They tell you that the recovery can be screwed up, but mainly that applies to people that do not use their common sense with the recovery and/or allow their dog to run around "willy nilly" too soon after the surgery. Its like all the warnings and laws we have for stupid people.
I can only please one person per day. Today is not your day, tomorrow doesn't look good either.
"You didn't know of the magical powers of the break stick? It's up there with genies and Harry Potter as far as magic levels go." SisMorphine 01/07/07