Any particular reason you want/need to stay with Volkl? V-Square has some nice aspects (namely spin) but tension maintenance is not all that great. There are other square options that would do better in that department, such as Tecnifibre 4S (previously called Black Code 4S) or Solinco Hyper-G / Hyper-G Soft, or slightly different shapes that may give equivalent spin (ex: Tier One Firewire, which is triangular).
Not to change things up too much, but to enhance snapback, you might also consider a larger tension differential between mains and crosses and/or a narrower gauge of Black Magic, or trying an alternative cross such as Tier One Ghost Wire.