I have the Trice Pro and the SL, however, I have only ridden the TRice Pro so far. Haven't gotten the chance to ride the SL yet so I can only comment on the Trice.
I really like the Trice pro for east coast NY, CT mountains. I sized down because i'm mainly on the east coast where I don't get much powder and it's ice all the time. I'm suppose to be on a 155-157 but I went with a 150 Trice.
Surprisingly my 150cm Trice pro handled really well even when Killington had 13 inch powder day.