Sacha Descuns's ski

[Ryota]

I was watching Moomba and saw Sacha was using yellow Connelly GT(maybe 2018). but Magic Malibu Pro Am from last year he was using GTR in Rd1 and Philosophy( if I remember the name right) was the ski for Rd2 and Final.

Before the moomba, He ran 41off on GTR(it was posted on Instagram).

 

What makes him to use so many different skis?All from Connelly but I'm sure that the ski designs are different.

I'm curious.