Over greasing the springs and spring box tubes can make them almost act hydraulically, I drill a 1/4 hole between the bottom spring tube mounting spades.
I am using the modified steering stem on one bike and shortening the spring box lengths has been suggested to prevent bottoming out, on the list of jobs to do shortly.I Could not remember I wrote in this thread 6 years ago. But I shortened an old set of spring boxes last month to accommodate the springs used in conjunction with the modified steering stem.
Pumping them by hand I thought a hole at the bottom between the spades would be a good good idea, so I did it..... Just as I supposed 6 years ago.
Bloody hell I am getting old.
Bernd