As a painter i know how damn frustrating fish eyes/silicones are. Can ruin an otherwise lovely job, bits of ''shit'' as we call them in the trade

can be flatted no problem but fish eyes more than likely can never be fully flatted away safely, a good tip is if you notice a fish eye just blob a bit of clear in there (make sure its degreased out first with a solvent degreaser) wait to dry and flat it down like you would an ugly touch up and there you have it!