Your choose. I have never used the 661 but i have seen them and they both have the same features and quality. I have the fox one's and they have been fab.
Here is a few i have found Price : http://www.chainreactioncycles.com/Models.aspx?ModelID=11216 quality: http://www.wiggle.co.uk/CategoryProducts.a...e&cat=cycle Quality/ price / damm good: http://www.rudewheels.com/ViewAdvert.aspx?...&site=bikes
seventh f*#k off . Any good rider would want to go riding with people that are not as good. At least then you could have some privilidge in saying that it was you who taught him how to ride trials.