Goodbye 2x EXP Coupons!

assuming I do 172k+ per blast [57.4k a hit], my 2-shot ratio will stay.

So you kill at the same speed and get the same exp per kill? You need less exp to lvl, but have no access to 2x exp cards or 2x exp rep buff? Sounds like no increase to me, though you might save a few dollars that you no longer spend on 2x cards.