Correct, over time the overlap has been resolved by the FA by just telling clubs where to go. If you would apply a similar idea to Scotland, the ERJFA could cover "Central-East" (i.e. Tayside, Fife, Perthshire) and the EOS "south-east" (Borders, Lothians, Edinburgh). A similar thing could be done in the west with SOS covering "South-West" and the WRJFA "South-Central". The north can become "North-East" (NRJFA) and "North-West" (NCL, maybe Highlands/Islands would be a better name). 6 champions can get promoted, 3 teams relegated from tier 5. That and relegation from SPFL will mean teams will have to be moved around a fair bit in tiers 5 and 6 in the first few years, but eventually it would create pretty even regions. For tier 7 and below it can be sorted more on a regional basis, with probably amateurs tagging along at the bottom so every region will have a tier 7 at least.