I'm looking at his snaps as well. If you actually look at his % of snaps he has 3 times more in the slot which you have already established. He has 170 yards as an outside WR and 531 yards as slot. Now, obviously we can't assume that he would have the same production of course but if you reversed the roles and X3 of 170 yards he would have 510 yards if he was given the same snap % outside as he does inside. Would he be as productive? No idea but the #'s he has produced outside with the snap %s would indicate that his stats would be close and very similar without diving more into the analytics of it.