Absolutely. And don’t over-tighten those screws either, just destroys the rubber seal faster. The MotionPro one is what we have a few of- can’t beat it.
As far as cable lubricant goes, you can use wd40 or equivalent and just jet all the crap out every so often. I usually pull the opposite end of the clutch cable right off the mount arm and stick a paper towel around it- keep spraying until it comes out clean on the paper towel.