Aftermarket gaskets- not had 1 problem with them (Cometic) and it is 25K since they were put in. Trips, 2X to VA (via 15 states), 4X to MX and 1X into Canada and not so much as weeping!
To do a proper job the on the forks of an 08+ it is necessary to remove and take them apart. They need to be properly cleaned. There is enough wear contamination in there to make this essential. Replacing oil is half a job.