The SOS league covers the same geographical area as the west juniors, but there are only 4 clubs(EK, BSC, Cumbernauld and Bonnyton) who come under SOS from out with D&G, and Kello are the only D&G club who are in the SJFA. The same issue would happen if, for example, Tarff Rovers re-formed and wanted to join the SJFA as they would have play in the Ayrshire district league.
If the west juniors came across enmasse the best solution would be for SOS (D&G) league to become a third district below the top west leagues, with the west premier winner taking part in the promotion playoff for the lowland league. A similar solution could be found if the same thing happened with the east juniors although there is more crossover geographically with clubs coming from the same areas.