I have been running a DHX 5 Coil on my 09 Enduro SL for 2 months now with my trusty Lyrik Coil up front and it’s totally transformed the bike. If you can live with the weight the way the bike feels is totally worth it, it’s massively responsive and tracks everything. This is comming from an Mid compression Mid rebound RP2 not the AFR!!!!
I have tried every trick in the book with the AFR and it will not work as well as any fox or RS product. The negative air bleed makes it better but is sacrifices travel by around 10%, not ideal nut if you don’t have the cash for a different shock then it’s a trade off.
My main reason for changing to coil was Morzine, the RP2 was totally overwhelmed by the long decents and actually started feel like the AFR at the end of long runs (The shock got warm having the effect of increasing the air pressure).
My advice would be bin the AFR and fit a Coil or better Air shock, it’s a worth while investement.