The fingerstyle stuff is fun - but if you want to "get" frailing my advice is to work on it exclusively for a little while. Down-picking is counter intuitive and it is all too easy to fall into the trap of switching to something easier like fingerpicking whenever you run into a rough patch. Give it a few weeks to get used to the motion and rhythm before you start jumping from technique to technique.   

-Patrick

PS: Loved your take on Bald Headed End Of The Broom. I use a simple version of that song for drop-thumb practice here.