Ok I will share my results. On my 03 CR I set the lash at .008 in and .010 ex
I have noticed much faster turbo spool throughout the RPM. My truck has always been a little laggy in the lower RPMs with alot of smoke 0-10psi wasnt to bad but getting from 10-15psi was though to do with out smoke unless I was up in the RPMs. Now it is smooth from 0-15 where the turbo is ready to go.
So over all, all around driveabilty is way better.