Well not just because it's newer, but also because it's newer. Newer co-poly strings are much better in maintaining their characteristics much longer, better additives, heating and other technical reasons. Just better technology really.
Revolve Twist will become sort of a round poly after a while, but I can clearly feel the ridges in the sweetspot even after 4h of play, there is roughness to the hitting surface. And I hit hard and with spin, my strings don't last. And yes, you really don't need ridges for spin, only in rare examples I lack spin in round co-poly strings, and I prefer round or rounder strings. For example Solinco Confidential is great but I would really like an octogonal version, this sharp 4 sided version is too grippy and a bit inconsistent, sometimes it grips totally, sometimes less, depending on various things.
But nevermind the ridges, I think Revolve Twist is better than original Revolve (it was initially called Ripspin) because of tension maintenance primarily, and overall feel of the strings. They are good on the first hit, and the second, and the third, and if they don't break I start thinking of cutting them out, but I always conclude that there's no reason. They are still responsive, tough and elastic, they havent cut into themselves or thinned in the middle, not baggy or dead, balls are not flying everywhere. Even if I do cut them out they snap with a clear pop and mains detach a lot indicating remaining elasticity. Similar to Solinco Confidential that I cut out 20min ago, those two are comparable actually, same type of string, same category of power and control, but see above. So an OK consistency and feel from the beginning to the end.
On the other hand, many strings are great in the beginning but then either totally change or totally lose tension or get thin in the middle or cut into themselves etc. All of that is typical for many older co-polys. Newer materials get higher molecular density but less stiffness because of newer additives and technology, they just maintain their properties noticeably longer. Original Revolve loses most of its slippery coating after the first hit, but not all of its snapback because it loses tension and I can feel it. Second hitting practice is already a different string, third hitting it already starts flying, strings get baggier and just used. If they don't break I cut them out, and by then they will lose most of their elasticity due to elastic strain, from just being tensioned in the frame, and of course hitting the yellow ball.
I also have to add that for many people that progression toward deader baggier string will be welcome, many people don't like freshly strung co-poly because it is too stiff for them. Which is perfectly fine, do what is best for you. Also for many people Revolve will last forever, so everyone's perspective is different. If a player can find their sweet spot performance wise, price wise etc. with any string it is all good.
