So assuming you have stock bump stops you will already a higher spring rate at bump (more air compressed into the same space).
In this case I would see if you are bottoming it out on bumps, if you are then fill the pistons, or slow down:angel:
If you are running extended bump stops, I think you would need to get the air volume at your new bump the same as it was at the standard bump. Filling the pistons may do this, or go part way.
Tony

