You make of confusion, which is made by many, of linking the mood used (subjunctive or indicative) to the form of the verb, not to the meaning of the sentence. As your sentence indicates unreality , it is in the subjunctive mood (informal speech, I'd say). Unfortunately, only few grammars make this distinction well.
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BelieverShe swiped at Rusty as though heYes, it is subjunctive.waswere a fly.
CalifJimGoogle results:Hi CJ,
"as though he was" 354000
"as though he were" 674000
"as if he was" 1280000
"as if he were" 2180000
CalifJim In the specific case at hand, the rough conclusion is that "as if he were" and "as though he were" constructions outnumber the corresponding patterns with "was" two to one.Uh-oh! No! I'm afraid there's no conclusion at all, not even a rough one...