Some of the London suburbs are good for day game like Kingston upon Thames and Croydon as they are large shopping areas with busy streets. Also remember that day game is not just street game but is done in places like supermarkets, record shops, coffee shops, bookshops, libraries, parks, museums, public transport, train stations etc. Here is an example of a direct daygame approach in a supermarket:
http://www.youtube.com/watch?v=QD_uul_DJo0
And here is another example:
http://www.youtube.com/watch?v=MlLzsUfc44w
So don't think that your town is too small for daygame or doesn't have enough daygame venues. I also live near central London but find that the women in the suburbs are more friendlier and open to being approached and are not in such a rush all the time. So don't think that central London is a day game mecca, as most of the women there are busy and are difficult to game.