Hmm, don't you think that another good requirement would be sky access, seeing that the majority of the HNM's required for abjurations are in Tulia, with the exception of a few.
Proper preperation and planning prevents **** poor performance. This demonstrates a lack of proper preperation, one prepared does not mispell, especially after an edit. If you edit it once I would hope you would fix spelling errors...
Honestly, I'd recommend you up the requirements to 70+ for all. Once you get to the tougher HNMs anyone below 70 will have severely tough time. Heck even some HNMs you don't want anyone below 75. ;x
But either way, already in an hnm ls myself. ^^ But good luck to you.