I'm looking for an Underground flx 128 2006, but I've read that this board is great but a bit slow with the double concave. Is that true ? any review

I'm riding on a rrd Promodel 1, super control, but really to slow for me.
I search a fast board, as my old Thorn...

Sorry for my english...

I'm looking for buying new Wipika Matrix 06 11m, and I search a review of this kite : Hang time, low end, power ?
It looks great, like the Indy

I use wipika AMP+ 12m for 75kg...


thanks