I also only set full rich for starting and takeoff (low density altitude). As I start the initial climb I start leaning to climb ROP. When I level off I lean for LOP (utilizing the BMP). When I descend for landing I gradually enrichen staying LOP and land. I then lean aggressively to my normal ground setting. If I need to go around my hand is right there to push all the levers forward as needed. I think the mixture full rich props full forward mentality is A) from the 50's-60's mindset and B) for the litigious folks, not what's best for the longevity of your expensive engines. *Disclaimer: my $0.02 about how I operate. Do what you feel is best for you.