Calmed down now. Collected all of my toys back in me pram and my dummy is back where it should be.
Going to try and rectify the problem as suggested. Probably go the shimming route as it gives me some adjustment.
I agree that swing arm play may not be the source of my handling issues but it certainly isn't helping. For minimal cost I can sort it. Then I know it isn't an issue
After that, I'll more than likely replace the rear shock. I'll get this thing to handle one way or the other. lol