Only managed to beat Tinker's Top XP Score by a little, by using Imawal on the 3 bosses.
http://images.akamai.steamusercontent.c ... 59B615C78/I wasted potential XP, the 4 to 5 ding may not have been necessary and probably I could have used purchases to push for an earlier first boss kill at level 4. This and also the fact that I converted off both Weytwuts and the Wonafyt early and hence lost out on quite a bit of potential XP when mopping up. I did finish off all mobs, so the higher XP score isn't really that awesome in comparison.
Probably, taking Vampiric Blade instead of Dragon Shield and making use of Lifesteal, and earlier conversion to Dracul is another possible way to save on health and go for earlier boss kills and higher XP.