Running LOP is more controversial but has advocates.
Extralite,
The above against LOP are contributions to the discussion by the ignorati.
LOP was SOP in all large piston engines, and until recent years, was well covered in the Lycoming engine handbooks --- which went into detail not necessarily to be found in the particular aircraft AFM (by whatever name).
The objections to LOP are a measure of the dumbing down of aviation knowledge.
Tootle pip!!