Ahh yes funked.. true.. but here is another point- US .50 cal and ShVAK could take a 190 allright, both were very high velocity. But theres no arguement that it wasn't "easy". The US had it in the shade- 6 to 8 guns on target got the amount you needed to hammer the plane to bits and punch through that plate. ShVAK however were usually 2 to a plane- very very difficult. I know either could do it- many many parts were not covered and unarmoured, but it was difficult to shoot down compared to planes like a 109. Much the same philosophy as an il-2 or that stuka with all the armor on it.