So during my set with Myollnir, we played the two ike-ics match on battlefield. I started to platform camp and he proceeded to Uair me to no end.
I then tried something I had on my mind about this configuration, which is eruption. I super-armored his Uair and launched him in the air, where I was able to juggle. Obviously it's a risky bet, if he knew what I was going for he could've airdodged>grab; better used occasionally. But eruption sends ics at a much better angle than Fair, a more conventional anti-platform sharking move, would have.
And I don't know about jab2, everytime I jab2 MK's shield I just get UpB oos. Though I don't think I've ever tried it at maximum range.