DCs are overrated. People think they want a DC fork for the sake of having a DC fork becasue they associate the SCs with trail and XC. FR/DH SCs need a beefier crown to be stiff as DCs but my 66RC was the best buy I've ever made. It rips at whistler, it rips at DH, its stiff enough that I can't tell if its not 100% stiff. I would never need anything else.
Of course a 35mm SC will not be equal to a 35mm DC. 66 vs 888.
The super T IMO, is actually pretty flexy for a DC fork front to rear wise.
The new doppio air system was designed for huckers on the 66 SL.
The new system requires much more air pressure in the negative chamber than the positive chamber, where as before they were pretty close. If any of the internal air spring seals break the high pressure air from the negative chmaber will spill into the positive chamber. It sucks the thing broke, but at the same time it will ride high in its travel because the negative spring has been released into the positive. So when it pops on a drop the fork will stay upright as apposed to collapsing and sending you over the bars. The older system would leak and get stuck down because the negative pressure was so close or below the positve pressure.
Then you also have the bottom out chamber which is pretty much makes the 66sl an RC2x. If all else fails, this will keep the fork from slamming bottom.
On top of that, the right leg can take air preload.
They went out of their way to make sure it's a safe fork for hucking. On top of that it's completely user servicable.
Unlike that goddamn TALAS system they put into the Fox 36. What a joke that was...