I us (L) plates (8a) continually. It's great not having to reapir. i also use polaris. Damn useful armor. If I could get (L) for 130-140% (or 160% lich) I would use it non stop on big mobs. As for tsktsk and itumatrox, ... well there IS no non-L equivalent...(unless you have vain+sentinel...which simply are not available) and not bad vs opalo of blp otherwise known as ml-35 as well. I have been using (L) plates forever, and as soon as the price drops on those rarer (L) (i.e. when the bp unl. drop) I will use them full time. Same goes for infiltrator - unl bp's drop, then i can pick the stuff up for 150% since the components are TT now
(L) armor has some great advantages - i don't need to change from my current set up of jag/phantom+8a if I want to go hunt wargen+trooper 08's, for example.