I hate to say this, but i think they are better than the GG ones. Especially if you use a degreaer to clean your bike, the GG ones tend to dry out and get v tight on the forks affecting suspension
The SKF seals are outstanding, no need to use WP (imho). When i had a -03 with wp43, they constant leak and i was changing about 3 times a year... The SKF have last for 14 month, and the new replacement was really smooth and easy to install!
1 It is impossible to remove the dust seal without damaging it. I do this every time i ride muddy stuff and i remove the dust seal and clean out all the fine dirt with wd40
2 when i adjusted the oil level i had to really push the tube down over the inner which led me to believe that they were very sticky and/or tight.
maybe it is a result of the detergent i use (prepsol) but the ktm seals slide better (and as a result will possibly weep)
Allways, allways use silicone spray lube, and stroke them after spraying, on your hard chrome tubes and shock shaft after washing with harsh detergents.