First, does anyone have/had/used one of the these air for balancers? Do they make much difference? I see them come up on ebay sometimes and wonder if it would be worth it.
![](http://img.auctiva.com/imgdata/2/3/7/4/2/7/webimg/30670972_o.jpg)
Second, should I run air in my forks with progressive shocks?
![](http://img.auctiva.com/imgdata/2/3/7/4/2/7/webimg/30670972_o.jpg)
Second, should I run air in my forks with progressive shocks?
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