the entire reason we did this was because of a very unscrupulous sawed off independent dealer stated upon purchase "the valve guides have been done" when asked about them 6 years ago.
i have had to endure very comical people on numerous occasions remind me that my car is smoking. wasnt eating enough oil to worry about, but nonetheless embarrassing. i put up with this crap long enough. and the weep from the cam o-ring. we could tell from sludge marks the car had been sitting awhile thru its life, despite upon my purchase running the snot out of it. sludge once there dont get flushed away. P.O. had died so we surmise it just sat until estate cleared.
no weirdness on plugs, intakes,exhaust valves. at 124K and i bought it with 110k, i am preeeeetyy damn happy with what we found.