Ok… I read opinions on the web and some reviews, and a sentence answer my question:
"The V10 is, by almost all measures, an improved RS3M V5. It's more stable, slightly lighter, slightly faster, and doesn't have extremely weak corners."
Thanks you for your useful links. SpeedCubedb cube reviews are very useful and there is the one for the V10 which was not on basilio.dev.
Basilio Noris's website has amazing informations. It's a shame there's no RSS feed. I would like to follow him/his work but there is no way.