Well as far as I was concerned heat was my enemy, so on operations, hard climbs and descents, up to 27 per day, 1000 + hours per year I used a lot of fuel. With the TO rpm at 2700 (noise abatement) full throttle I liked at least 26gph, rest of climb always on the rich side of rich, didn't like cylinder head temps anything over 380 and that seemed to work well for me.
However when I was ferrying or cross country I ran LOP, was amazed how low the cylinder temps were while burning a lot less fuel. My speed was also reduced so maybe I didn't save much at all in the scheme of things, probably needed more coaching in LOP operations. Anyway I liked it, smooth running engine, low cylinder head temps, great!