One thing I do every now and again is CC>dtilt (knockdown)>dsmash or WF. They either tech in place or away most of the time. This mostly works on the fast fallers.
As for the best follow ups, stomp is always great if you know you're gonna get the hard read. Fair is good if you can't reach them with stomp and then I like to do perfect waveland into regrab if they are DIing away and I can tell that they intend to tech away. It's rare that this situation occurs and you can't fair, but it definitely happens. Another couple of good options for this situation include waveland jab and waveland tilt (note that you do have to waveland for a guaranteed follow up, so your reaction time should be pretty good). <---- you can WF too.
As for our treatment of kage: Renth, we all know he's the best, there's no questioning it. But there's nothing wrong with some competition! I've never said anything with the actual intent of degrading him (or any other player, for that matter), but I like ACE's school of thought lol... just some **** talk to up the competition a little bit and get the blood flowing aka the wife approach (SO to the smash documentary). I would be hard-pressed to find someone who thinks that he's actually bad at this game.
All that said, kage, money match at our next tournament! Pseudo-dorf is getting better and better with each play (even if that is like once a month).