272 posts
I have both 3.5 and 2.9 (North). Like many have already said, in higher winds very useful. So I'll go a different direction, price. Wait for a clearance sale and pick up the 3.0, smaller sizes tend to not move as quick so they end up being discounted more often. Or go the used route, there are rich folks who will buy one of each size, then find out that they are not skilled enough to use the smaller ones, so they sell them on in near new conditions.
