Thanks FD
Was looking at that FCTM page some hours ago.
Haha 6/60 is for GD? Recently I used 4/62 in the sim interpolating from table and worked wonders! 3/60 maybe is for lower altitudes? Have noticed in the actual airplane, but maybe I was fooled, you know sometimes you cant distinguish 3 with 3.5 and if the speed was little higher with lighter GW...idk!