unusual to see a new thread / topic in the gspot after a while....
anyway, I am going to suggest the driveshaft in the paralever.
Years ago I pulled mine and when re-installing, I didn't aline the UJ's correctly (there are a few other topics in here about that)
The caracteristics of the bike changed some what, would fall in to right hand corners and I had to really work it to turn left.
Whilst you note you haven't done anything to the paralever, I am putting forward that there could be wear in it that is causeing the pull to the right.
I suggest that you check everything else first, start with the simple items and work to the harder. (Its not hard to pull the drive shaft though)
Moments before you die, your life will flash before your eyes - make sure the film is worth watching - my Grandad
Preparation + Opportunity = Luck
I like your logic - its alternative - Ninja Wranga 03-Aug-13