V5 was always my favorite, but the v7 consistently stands up to my ham handed abuse without ruining the ball. They will leak if flown with or washed, and becaus

V5 was always my favorite, but the v7 consistently stands up to my ham handed abuse without ruining the ball. They will leak if flown with or washed, and because of a few dramatic ruptures I have been experimenting with the uniball vision fine with excellent results.