[williestargell]

Mem blur is not automatic. You don't receive a resist message, but that does not mean that the blur was successful in removing agro. You need to con the mob afterward to be sure that it is indifferent while you're invis. If not, do the whole thing again until you invis and it cons indifferent.

Lulling is also your friend here. It prevents you from re-agro'ing with proximity.

So Mez+calm+blur+invis+con the mob is the safest route to go.