I don't think it has been mentioned yet, but profit sharing is a way (the only way?) Delta pilots are compensated from the current outsourcing scheme we have today. If our contract allows JV's, Codeshares, Rj's, etc., then this is a way we get paid for that.
In addition, if Delta ever gets into a bankruptcy situation (I know, not likely right now, but never say never) profit sharing should be an easy "keep" for the pilots since per definition there is no cost unless there is profit.
So put me down as a no for a PS trade.