The signal is much softer. The Signal Park Series is one of the softest boards on the market. It still has good pop and is super light too. I like it because I was about to go from 148 to 150 for more stability and it's not much different on rotations because of the light weight. Signal makes some really nice boards for all styles of riding too. Omni is a sweet shred deck. I love my park series though.
I'm 160lb and 5' 7" as well. If that info helps. 147 sounds way too small for someone 170lbs. It might be cool for rails and jibbing, but it won't cut it as an all round deck. I have a 147 Ride Kink and it's sketchy at high speeds.
Last edited by Anor; 10-24-2009 at 02:09 AM.