I've been running the 16x4 Wide on my 100. The spooling isn't really that big of a deal. It does take a tiny bit longer to get up to speed. I run 30% Nitro in my 100 and it really isn't very noticable at all. I would have to agree with jsnipes, I found it easier to hover the plane with the 16x4w than a 15x6.