If you have a stock damper I suspect the dot is caused by it rubbing against the tank, and it'll happen again if you touch it up. I've stuck a carbon fibre patch on the appropriate spot on the tank; buying an Ohlins would be the complete solution.
I'm sure it's been posted before, but does anyone know what touch up is avalable for the frame and fairings? I'm sure there must be an easy solution to the fairing but the funny semi silk gold finish is a bit of a sod.
I can sort the colour out it is not a problem but only thing is i can only get 1/2 litre which is not cheap and being a vary rare colour I wont need it. The frame colours are not a problem if it is grey but the gold is very difficult to get right as i have used 2 suppliers now by mail order and both have been wrong so went to closest 1 on bike done a match mixed paint perfect match came home put some into pots tried it a couple of days later wrong colour even loads of mixing still doesnt help, so if you need some paint chips or scratches done on your frame then it needs to be done professionally.
I had a similar mark on my tank I think it was the rubber washer for the tank bolt that was split causing the tank to move forward that little bit try turning the washer round a bit and see if that helps
Ducati dont actually do touch ups and all i do is buy 1/2 litre of paint and bottle it up into little air brush bottles and sell it on but with a colour like yours there will not be much call for it. Sorry cant help mate.