Had a talk with SA on 2008-10-08. Switching to the experimental map is not simply a matter of flicking a switch, but neither is it a job that will take months. We will sit down in June 2009 to make a plan and a timeline. At that point, SA and I will determine what kinds of resources and funds we will need.
Meanwhile, question to put to MC: Is there any information in Map 2 (the starred map) that isn't in Map 3 (the experimental map? Brief conversation with MC confirms my instinct that Map 3 is the up-to-date map. We have not been maintaining Map 2 since August 2006 when ME posted it. MC has been working on Map 3, redrawing ward boundaries, fixing labels, and adding new information. Therefore, we should be able to decommission Map 2 without any loss of data. MC will spend 1/2 hour checking some points and get back to me. If further comparisons seem warranted, we will decide then after her preliminary comparison.