they appear to have the line as well....i have yet to get any of the V2 in hand....im Trying to get a 2nd set of V1's together
I think it boils down to preference if you want to run a proline tire on a AKA foam which wont have the cut out's....Obviously you swap that around and use AKA's on the proline's i don't see any thing bad about that but the other way is the concern when you have a 2-3mm patch of nothingness due to the tire having a rib and the foam not.