Firestone F9000 bags

I was wondering if anyone has used firestone F9000 sleeve bags? do they ride good and how much lift can i get out of these things? I ask this because i am pretty much forced to use them due to not enough space to fit the 2500 or 2600. I called suicide doors and they said they are awesome bags. The only draw back is that i cant use them in a cantilever setup due to their low weight capacity. Any input would help thanks.