E60 sport mode i
 

Hello all,
Has anyone had success or attempted to remove the Clutch delay valve in the manual transmission of a 2010 E60 535ix? I have read reviews saying removal of the clutch delay valve can eliminate the 'assistive' feel in the clutch making it feel more smooth to the experienced driver.
On a separate note, has anyone installed a clutch stop or something of the sort to reduce clutch travel? I realize the push-to-start requires a certain amount of clutch activation but anyone attempted this modification?
Would love some input or opinion on either topic!