Place your empty grey cartridge in the form 2. Then manually fill up the resin tank for the form 2. The machine will recognize if there is two much resin. This will keep the wiper arm and heater on. The heater will reduce the viscosity of the resin.
I have been recently firing cups still attached to the supports. I print the cup upside down so the rim is connected to the supports. The base of the supports acts as a nice firing base for the cup. The cup is fired upside down. The print fires much more even.