I've been experimenting with Babolat Tonic Longevity strings in several set-ups since last Fall and have never felt it was particularly all that amazing as Gut has a reputation for being. I will say that I have never tried it in a full bed, always in a hybrid of some sort, always with the Gut in the mains. One racquet I demo'd this Spring had a full bed of VS Touch 16 Gut in it, and it felt very soft and comfortable, definitely moreso than the Tonic 15L has felt in any of the hybrid set-ups I've tried it in. Is there a noticeable difference in feel between Tonic 15L and VS Touch 16, or was I simply feeling the difference between a FULL bed of Gut versus a hybrid with Gut in the mains *only*? Asking because I'm getting ready to order a few more packs, and was thinking of getting the Tonic Ball Feel sets instead of Longevity. Thoughts?