That's cool.
I made the decision a few years back to buy another rig for the hard core stuff. And I'm really glad I did. It's been so much fun with much less stress knowing it can handle anything I throw at it.
Sometimes you just need the right tool for the job. The 5th gen is a pretty versatile tool, but it has some major limits when it comes to the really hard core stuff. Even with SAS...the body is just too big for the stuff I like to do.. but it is also fun to make things do what they are not really good at, so I get it.