WOT/LOP question
When I get above 7k I go wide open throttle and attempt to get lean of peak with no EGT gauge, If I lean back to first sign of roughness then screw the mixture back in a ball hair, how close to LOP will be I be, or is there just no way of telling without an EGT? Should the engine be ever so slightly rough? (engine is a Lyc O-360)