Compensating for MEMS Gyroscopic drift
No, you can't do that.

MEMS gyros are rate gyros &mdash; the output represents angular change per unit time, not total angular change.

Two gyros that are rigidly connected will give the same readings, not complementary readings, so you can't cancel out correlated errors that way.

Most of the errors in the readings from the two gyros aren't correlated anyway. These include offset and scale factor errors caused by manufacturing variations, as well as noise.