Ryan O'Reilly and Kane played 228 minutes together at ES, roughly 25% of the time for both of them.
So pairing the two creates a very nice corsi percentage. The GF% is shockingly bad, but the shooting percentage dip and the size of the sample might be able to explain that away. When together they essentially get used the way Kane does, ie ROR's offensive zone start percent spikes up to Kane's normal one by about 10%.
Here's Jack and Evander. I almost don't want to comment on their GF% together because the sample size is getting uncomfortable (only 15 goals scored by either team while they play at ES together) but it's much higher than it is for either guy by themselves, and the CF% dips less than 2% even though their usage shifts more than 10% towards the D-zone. Either way, it's not as bad for either of these guys statistically as I thought it was. Expanding with the eye test, I definitely think Jack & Evander figured each other out more this year than they did in the first year when Kane was flubbing Jack's passes, Jack was even worse defensively than he is now, and the two couldn't stop running into each other. I don't remember enough of ROR and Kane to comment, evidenced by the horrible prediction I made the post before this.
I'm wondering if that train of thought comes from the 15-16 season.
A side note, I think the GF/60 is bound to go up across the board for this team, but Kane and Eichel have ridiculously bad goals-against numbers at even strength, and we need them and the coaches to put in the work to lower them.