Imagine being a Halfling with the Helpful trait to jack that AC boost up even further...
(::pictures a midget with a shield helping to guard your kneecaps::)
Here's my question though:
Does the enhancement bonus on a magic shield boost the ally's AC shield bonus (assume said ally isn't sporting his/her own shield).
Would JoBlo's mundane small shield and SuperCavalier's +5 large/tower shield both end up lending the same +2 AC shield bonus to an ally with the Saving Shield feat?