I started using a distel (or schwabish, cant remember) and didn't really care for it. Don't get me wrong it worked fine but it just didnt feel right. I researched a little more and decided to try out the knot that sherrill's website recommended for "seasoned or experienced climbers only". Took it low and slow and really liked it but I had a couple moments like tree md where I would double check it after unloading it and be like WTF is that mess? Having to redress a life support knot when you're 45' up kind of made me a little queasy.
I then stumbled upon a youtube video that demonstrated a variation of the VT called the XT, so far it has been flawless. Never had any trouble with it no matter what I do. It behaves just like the VT except it holds together no matter how loose it gets. Always grabs predictably, right away, when loaded. I know its not for everyone and lots of guys are set in their ways but if you are one of those guys that loves the VT but wishes it could just be... better, then this one is worth a shot:
It is tied just like the VT except instead of braiding right after the wraps you cross over your bottom tail just like your tying a blakes hitch, then you braid. That extra little bend holds the wraps in place perfectly. Works for me.