DK Of-level Instance SoloingFollow

Hey, I have a level 66 DK, and have been playing around with this spec for soloing Ramps (mostly just to see if I could). Surprisingly to me at least, it wasn't that difficult - the self healing and reasonable damage output allowed all the bosses to be downed without much issue (few deaths on Nazan, but mostly through bugs or complete lack of concentration on my part) - and I've now done it twice (at level 65 and 66). Also, just to make it all even easier still, I am using a spam-button rotation of PS-IT-DS-HS-HS-DC-DS-DS-HS-HS-DC and just tapping CDs every now and again. What I wanted to ask was really a 2-parter:

1) Does anyone have any thoughts on the spec above - can you think of better uses of points (perhaps moving 3 points from Death Rune Mastery to something like Spell Deflection or Veteran of the Third War)?
2) Where do you think the limit of this of-level soloing ends? (Specifically, I mean the ability to solo instances which provide XP from all enemies)

If you want to try it yourself, go for it, and put aside about 2 hours the first time through Ramps (takes some time to get used to the slightly extreme way you have to play!)

Thoughts?

Jeb

Hmm... Certainly interesting... Always good to see thoughts on these things from a different angle. Certainly VotTW and Blade Barrier would be useful, but I hadn't really thought about removing Bloodworms or Scent of Blood to do this - think I'll take up this idea - thanks!

Oh, and as for the fact that I'd get more XP and gold levelling through questing and jazz, of course I would, it's just this is a slightly different challenge to what I've normally done in WoW, and tbh it's a pretty good laugh :D

Jeb

(PS - as a little update, I tried one very quick half-***** run of slave pens on boxing day, got distracted by family and missed a spell interrupt i needed to do, but from that short 20 mins or so I'd guess it was possible as well)