After not being with EBI since January, I am not as well versed with the tech side of their pieces... so I do not want to give anyone the impression that I'm up to date with C300 or EBI.
All I do know is when on the WSOB set, after seeing a ton of the EBI guys throw the ball during the week, I was curious about what the ball was... D-Mac happened to be warming up on the stub lane, a certain individual was there next to the stub-lane so I asked him what the ball was and he mentioned it had the Resurgence core and it was pearl.
The individual that told me about the Vow doesn't work for the C300 or EBI but he is well known and to add to his credibility, was on the TV lanes in practice with a few guys helping them with ball reaction, etc. So he either speculated about the Vow or he was accurate.
In the end, the Vow will likely be received well by the masses.
Again, no intention of making any inaccurate claims, strictly relaying what I heard.