Here is my current plan or thoughts anyways. Rather I run solid flat or hydraulic roller I plan to go thru the 30 minute break in process if for nothing else ring seal. I'm an Amsoil guy so I plan to use their break in oil. Following that break in procedure i plan to change oil and filter and go with one of their oils. What do you guys think of the break in procedure. If solid flat I will of course break in on outer springs only. Should I run a conventional oil for a few hundred miles and then switch to the synthetic for ring seat purposes?