well, i am running the VR1 in my stroker and I broke it in using regular oil and zddplus (and some EOS- ya, a little paranoid). i changed the oil after breakin and used VR1 and zddplus and after 1000 miles, i checked the cam and lifters and did not have any flat lobes or lifters.

next oil change will be VR1 and Hughes Extreme Pressure stuff. so far so good (knock on wood)

565/575 solid cam