What we have for the most part is a fuzzy set of boundaries so nobody gets too anal retentive about Kello and Threave being in the WoS, Tayport being in the Midlands and Nairn St Ninian plus a few others west of the Spey being in the north region for historical reasons, but overall everybody has a pretty good idea of who should be going where. Only thing on the horizon that could throw a spanner in the works in a big way would be Glasgow Wellington but I doubt the SoS will ever let them in as they seem to be quite happy being the D&G league.