The Ver 2 CVDs have different characteristics over the MIP CVDs in regards the traction which is why Andy and Team HB use them on the rear of the car. The benefits of traction are lost on the front though because of the excess chatter that the Ver 2 CVDs have over the new MIP CVDs.
My suggestion to everyone would be to keep 1 set of MIP CVDs to use as a spare for your fronts, and use the Ver 2 CVDs so you can optimize your pace.