I agree with the sag. And with more travel comes more sag. I used to race mx and downhill mtb so I am very familiar with suspension set up in long travel applications. I'm of the belief you can never have enough, and the more you have the faster you can go which is what I'm aiming for. As for the tubes, I agree but they have done enough of them for this bike and without issue, that I'm willing to trust it. Hardest part will be getting a side and center stand for her once she's all leggy 'n' shit!