My Polish visa at the end of next month and I want to receive my 90 days into Schengen.
I plan to go to UK for a few days and then return to be granted my temporary stay.
As being an Australian citizen I am not required to apply for a Schengen C-type visa and can travel in Schengen for 90 days.
Should I leave and return Before my Polish visa expires or after? If before, I may run the risk of them thinking I'm using my Polish visa and causing errors or vice versa.