I must say that Elemental Strike seems like a much better option; better AP (-3 vs -1/2 w/Element Effect) for less cost (.75 vs .5), at the cost of lacking in subtlety. Of course, "subtle" isn't really on the menu to begin with when you're hitting people hard enough to punch their heart out through their rib-cage.
Oh yeah, with it's current mechanics, penetrating strike is utterly worthless; I was just going down the list~
On the slight tangent of elemental strike... the 'Blast' element adds it's Force to the damage for determining knockdown... but what would the 'Force' of an elemental strike be... the unarmed damage?
Yeah, I would assume that the "raw" DV of the attack (i.e. before Net Hits, Called Shots, other modifiers) of the attack would be the Force, since Force = "raw" DV for combat spells.
But, to stay on topic, I think that perhaps a set of Full Body Formfit would work. It specifically includes coverage of the whole body, including hands, feet, and head, so you're covered for everything from kicks to headbutts.
*makes the wavy-hand motion* Eh, ~could~ work, I suppose...
Yeah, it's cheesy as heck, but it's technically legal.
I, personally, would fluff it out as special, ritually crafted "Magical Ninja Armor," which just happens to mimic the price and functionality of Full-FFBA, to make it sit better with myself.