I'm 5'6" and 148lbs, I'm interested in the 148cm board. Looking to do easier spins, would this suitable for that?
The 148 could work for you but if it were me, I'd go with the 153 considering your height and weight. 148 would definitely be easier for spins but a 153 is going to be better for all condition riding.
go 148 no doubt unless you ride pow or hit 40+ foot jumps