I have several tees on my course that are sloped from back to front by 1 to 2%. I am not a good enough player to judge of it makes that big a difference, but I am inclined to rebuild them the opposite way with the front being at least 1% higher than the back. This would involve moving quite a bit of material and regrading the slopes to match the new grades. Fortunately the mix is good material and it can be recycled.
I would appreciate it if the architects on this site would comment on what they would do and if they have any tips on how to do it most efficiently.