Lostsoul...we recently changed from Jeppesen to the above mentioned charts...have also noticed many differences RE: bleeds off take-off effect on the climb-limit weight...seems these charts are much more "refined" where as the previous ones used were "coarse" so to speak....I do prefer the new charts...but they are in deed "more detailed"....the overspeed/improved climb call it what you like shortens the acceleration(level off) sector, thus improving the overall gradient to 1500' agl