Quoted from alveolus:While in Hells Bells on the premium and at least one VIP pass in pocket, do the Super Skill shot. If it times out before you are able to make a shot, immediately hit the VIP button which awards a bell shot and 2 VIP passes.
It was more of an insurance policy, because you were using a VIP pass to gain 2 VIP passes (+1) worst case . . . versus taking a normal skill shot for (+1) and not giving yourself the opportunity to make the Super Skill shot yourself (+2).