I recall reading that the stock seals are better than other choices (although Athena was not mentioned). I had a pair of Synergy seals, which Scuderia West put on the middle of last year, and after two real rides (long weekends in and about Mendocino NF and Death Valley) they are already leaking... the tubes appear cherry, but I could check them carefully too. EDIT: I see there are more than one species of Synergy Seals for each model of forks, so maybe one is better than the other... I don't recall which I had, as they were given to me years ago. I have lots of maintenance to do on my bike now - not a crash but several things became apparent on the last ride.