Why? If a station is going to flip, shouldn’t what ever the new programming is going to be, be aired at the start? I understand the 10,000 songs for a music format, but putting on songs or tracks that are not going to be in the new format is IMHO dumb. Some radio geeks get excited but how many have a log book or PPM? When a station flips it is basically stating that it does not care about the “old” audience. They will go away on their own. With social media and word of mouth, your “new” audience will find you quickly (hopefully!), and if you are stunting they might get the wrong impression. First impressions do tend to last a long time. A lot if not most stations are ran on a PC, so most of the “programming” can be imported quickly. If there is a need for a “new” studio or phone screening equipment this should be completed before the flip. On air talent who are going to be unemployed, should work up till the end. With a severance package, and encouragement to do their best work for their air – check, hopefully they will find a job and not draw a lot of employment which does cost the station in the long run.