I agree that they play almost identical with the exception of the v1x seems to travel higher than the penta.Hey shorty thanks for slamming me about my opinion on the golf balls , totally not called for.So my assesment ( and I am a .05 hcp ) of the prov1 and my callaway iS are very similar , they both have the best greenside spin that most low handicappers want ,if you dont want any greenside spin you must check your technique because you certainly need that control for different shots around the green.The only difference in the two are the callaway penetrates more with a boring trajectory than the v1 .Greenside spin is crucial when chipping and different shots around the green that is why they make urethane cover balls and there priced the highest ,because these are scoring balls IMO.I would like to see someone make a black cat check up like a Urethane cover ball LOL.