Has anyone tried any of these? If so, what did you think? Are the descriptions they offer on their website accurate? Does anyone know if this is accurate?: The Zivkovic Z handle looks strange at first because of its palm shaping. The handle provides excellent control for defensive fencers as well as no finger grooves or heel support for offensive fencers, creating a desirable balance. Any comments on what fencing styles each of the different grips they sell are best for?