Dave, there is no other tips etc regarding the damping, once you have sanded the spacer and put some whities in and drilled the piston then they feel as good if not smoother than any shock i have ever built.
The only thing i have done (so has Kev) is dremel off the little lump on the front hubs (the bit that hits the castor block on full lock) to allow more steering lock. You might not feel you need it but its an option.
