Try this - I aplogise for the quality, it's copied off a spreadsheet.
Yellow lines are clean a/c, blue lines landing flap/gear up, red lines landing flap/gear down.
Double chain dots are lift dependent drag, single dashes profile drag and full lines are total drag.
That should explain how the drag 'moves' with airspeed - the profile drag goes up as the square of EAS, the lift dependent drag goes down and the total change depends on what EAS you have to start with.
For change in weight at given EAS you just raise the lift dependent drag lines appropriately
Hope this helps
