This thread is for hybrid stringing advice Feel free to post your opinions, comments and hybrid experiences in here I use this small note I wrote some time ago, when I have doubts about what tension to use in my Hybrids. Hybrid Advice for you! When you hybrid a poly string in the mains with a softer string in the crosses - use the thinnest possible gauge for the CoPoly in the mains and consider going for a CoPoly of the newer generation with a TWISTED and edged surface like for instance Signum Pro Tornado, Tecnifibre BlackCode and WeissCannon TurboTwist for extra control, spin and comfort. Use a thicker gauge for the softer string in the crosses for extra control, tension stability and durability. When you hybrid Natty GUT in the mains with a poly in the crosses, go for the thinnest possible Natty GUT string, that your wallet can accept. If you don't break strings often, consider my favorite Natty GUT string - Babolat VS TEAM 17, best gut string ever made in my view. The poly you use for the crosses in this hybrid should NOT have an edged or TWISTED surface, because you don't get the spin from cross strings anyway and the TWISTED or edged shape of the CoPoly in the crosses will cut faster into the Natty GUT in the mains thus shortening the overall life of the Natty GUT hybrid. Instead ALWAYS go for a SMOOTH surfaced poly as cross string in a hybrid with Natty GUT mains and preferably of a thicker gauge, because the thicker gauge will not cut into the main Natty GUT strings as fast as a thinner gauge would. You should also consider using Babolat Elastocross String savers, which will stiffen the string bed up slightly but more than double the durability of the hybrid (I use anything from 48-60 string savers in all my racquets with Natty GUT in them) GENERAL RULE regarding string tension in hybrids ! You should always look and aim at getting a Constant StringBed Stiffness (CSBS) in your racquet. Therefore you always string the soft string in a hybrid 2-4 lbs HIGHER than the stiff string in your hybrid - NO MATTER WHERE THE SOFT STRING IS PLACED IN THE HYBRID. So when you hybrid a poly mains with a Prime Multi crosses, string the poly 2-4 lbs LOWER than the Prime Multi. When you hybrid Natty GUT mains with a poly crosses, string the Natty gut 2-4 lbs HIGHER than the poly.