Shift is a pretty awesome button and you should press it more.
i'm starting a new dk, and i was wondering, since the new glyph of disease refreshes the duration of both diseases, why not replace a BS with pest, so it would allow for one more obliterate, something like
IT-PS-BS-BS-OB- dump (to start)
Pest( before diseases run out)- BS- OB-OB- Dump
this till the fight ends, and glyphs would be FS/OB/Dis, since IT wouldn´t be used that much
i think this rotation would be easier in unholy pres, but not sure