well, I guess the point I was making is that mace+shield is a better combo than light/apollo's+strap for curing. (and it is, if you want staff strap stats on sub there's a
shield for that, in addition to a variety of other good options previously mentioned)
whether you think healing staff is better than templar mace is a different question (again, I prefer the general utility of shields to the staff but I recognize that some of that is just reluctance to pay more for the staff.) and after using the 50(70) extra mp up, you'd still be better off in a templar+shield combo.
that said, macroing can be a concern, and being able to leave the staff strap in place 90% of the time *would* save you macro lines.
...until you start collecting the various elemental straps...