One thing with the Advanced is that you will need to have them valve them to your specs, at least close enough to get the range right, and you will also need to get the whole refill/nitrogen setup. Everyone I know that has them refills at least every day. THats a pain for the rears, but at the bottom of the strut tube, thats a major PIA!

Beware......

(Running a gas shock with no gas aint ideal)