I've riden the 150 wide since last winter.
A great all conditions board for extreme cruising.
I've had one session on the 140, (picked up a BKB demo on sunday)
I rode it with a 12m and an 8m Rise during a storm session in Seattle.
I think eag nailed it perfectly, and I totally agree with that guy..
The 140 is one sweet ride for tight turns, big jumps and tricky new school stuff.
Feels the same or very close as far as low end to the 150 to me.
Now that I've learned to get the most out of the mako hull, the 140 is really special, but...
.... if I had to choose just one for my weight, 200lbs, the 150 would be it.
It's like a course racer and wave killer all in one and just does it for me.
Try and demo both, but if you can't, I'd lean you towards the 140.
Its everything the 150 is to me at your weight, and addicting to ride.
I was blown away by the 09' 8m Rise...
...the vented inflatable has reached perfection!