Lux Fluoro/RPM Blast Stiffness

[Shred]

I've been using Babolat Natural Gut in my mains and RPM Blast 17 in the crosses on my Head Youtek Prestige MP (51/46). I just bought a Youtek "IG" Prestige and put in Lux Fluoro 17 in the crosses. According to TW University the Fluoro is supposed to be a lot less stiff than the RPM, but it's playing stiffer and I'm getting elbow soreness. The Youtek "IG" is supposed to absorb more vibration also, so I can't figure out what's going on. Does anyone else find the RPM is rated really stiff but doesn't play that stiff? Thx

 

[NLBwell]

How long have you played with the Flouro?

 

[Shred]

Two doubles matches, one ball machine session, two service practice sessions. It does seem to be getting less stiff the more I play.

 

[Devilito]

I found stiffness ratings do not correlate with comfort. For example, I find both ALU Power and RPM very comfortable while some “softer” polys uncomfortable. I find coated strings a lot more comfortable. So strings like RPM, Black Code and ALU which have a more slippery coating resulting in less friction between the strings. Also, string tension makes a big difference obviously. Poly just isn't meant to be strung tight which can distort it's true playing characteristics.

 

[NLBwell]

Not sure about it, but it is interesting that it seems to be getting less stiff as you play.

 

[scotus]

Acc to my arm, RPM is much more comfortable than Lux Fluoro.