Just posting some info on a PDMS coating alternative which is working wonders on my B9v1.2.
Have tried Nuvat but problems with large surface area prints like initial layups.
Have been running this Silicone Grade for 3 weeks and only showing the smallest amount of ghosting around supports. Print almost daily compared to Sylgard I would only get about a week before ghosting got to the point that needed replacement.
This grade of Silicone is used in the FX industry - flow is perfect and works well over the waterfall edge with a retainer like the new poly vat or aluminium vats.
The Silicone is a 1:1 mix grade which I presume creates a better catalytic reaction - and a better tighter rubber molecule arrangement. Also the cost is way cheaper and the time to cure with a small amount of heat is within a couple of hours.
Here is info the grade that I am using.http://www.barnes.com.au/addition-curin ... glass-1573
Datasheet is available at same location.