Okay, from what I have heard and seen with my mf sorc is that when your merc kills the monster, the mf count is a combined effort of what you and your merc have. Ex:
Sorc: 204 + Merc: 50 = Combined: 254mf!
So if that is true then why can't TS be the same way? I think no matter if it is armor magic or not, it still gets the kill and the same mf is accounted for cause after all, IT IS STILL YOUR KILL!