Just an aside comment regarding the Polish pilots habits of 'going in close' to ensure a 'kill', this was taken up by Wing Commander Douglas Bader, (The famous 'Ace' with no legs!), when he was speaking to a Polish 'opposite' number.
It seems that the Polish pilots being used to older aircraft, with fixed undercarriage, and slower, etc. had their guns 'zeroed' at 100 yards, (the point in front of the aircraft where all of the bullets from the guns converge into a compact group of lead!), whilst the more conservative RAF had theirs zeroed to 400 yards!
Arriving back at his squadron, Bader, immediately ordered that 'Dogsbody', (his personal Hurricane), had its guns re-zeroed for 100 yards, (which enabled him to rise to a score of 26 by the time he was shot down, and became a POW, in Colditz).
However it did come back to haunt him one day, when his 'beloved' "Dogsbody" was u/s due to maintenance, and he had to use a different mark of Hurricane, which had cannons outboard in each wing.
Using his now standard 'go in close-shoot down the most' attitude, he used this trademark, only to see his cannon shells pass each side of the enemy!
The aircraft was zeroed at 400 yards! He 'overshot', looped back, and attacked again from 400 yards, and downed his adversary.