I'll second the All Balls comment - it's pretty cut rate stuff. However, they do have some oddball conversion bearings that no one else has. Otherwise, their bearings and seals don't last at all.
OEM seals are good (as long as they are new and not 40 year old new old stock, which might just perish on the shelf) but SKF has the best stuff out there. Not sure what the CX seal size is, but you can probably match it up in their interchange to see if they make some that fit.
As an off road racer where fork seals live in the worst possible conditions, SKF is all I use. Everything else ends up needing replaced a few times a year where I can get a few seasons out of SKF. I do use a seal saver/seal mate regularly. You can make one out of a cut up plastic soda bottle if you don't want to buy one.
One other thing to check is to make sure that your axle is set up right. tighten the axle nut, then loosen the right fork leg bottom to make sure the forks aren't being squeezed together or pushed apart, and retighten the bottom. The stock forks are pretty noodly, and any additional load on them makes them even more likely to leak or wear.
If you did not replace the fork bushings, that can also help. Worn bushings mean the tube won't be centered in the seal. Note that bushings also accumulate debris from the fork oil that gets embedded in the surface, which causes stiction. They can be causing sticktion without visibly being worn out, so there's a bonus reason for swapping them.
If you do have a pit or nick in the fork tube, a machinist stone can take any raised edge off and a dremel with a buffing wheel and aggressive compound can smooth the transition.
