If the talk is true, my thoughts on where clubs could fall in. This is based on seeing various SFL and SAAFL games this season.
Brighton - Div 2. Far too strong for Div 3. Premiership contender in the SFL who have beaten Flaggies this year and come close to Reynella (who did win the Country Club Championship earlier this year as another poster correctly pointed out) earlier this year, with another blockbuster rematch later this month. I could see Brighton vs SHOC/Gaza being very close games. That is on the proviso Brighton keeps their players if a change in league happens.
Morphie Parks - Personally I liken them to the strength of Edwardstown when they were in the SFL, hence would suggest Div 4. I would imagine they would win more than they lose in Div 4. But I could see others arguing for Div 5 which wouldn't be a wrong answer either. Morphie Parks have been pushed by lesser teams this year but seem to come up with a win at the end of the day.
Hackham/Marion - I feel these teams are at the same level and I would happily suggest Div 6 is appropriate for both of these teams. But if required, I don't think any team could argue acceptance into Div 7 to kick things off. Hackham face the problem of a more than long drive to many grounds which would seriously jeopardise numbers willing to play and travel that far.
I am not proclaiming to be a suburban football expert, this is just my opinion on the state of affairs based on what I have seen different sides offer at various levels of football this year. The SFL would miss Brighton if they do depart, one of the strongest clubs in the league. I can't see the SFL missing Morphie Parks, Hackham or Marion too much if they do leave however.
Pretty accurate I reckon, I know it was only a trial game but it was the last trial of the pre-season and both teams were full strength when Flaggies belted Plympton this year by 20 goals and Plympton are mid table in Div 3. Brighton should be straight to Div 2, especially as they get some Glenelg overflow.