BC Scoring

When you score a spike, do you still get 4 mass measurements on each side? What about with a fork horn? Does that get 4 mass measurements also? I can kind of understand 4 measurements on a fork horn, but not on a spike. Any help would be great.

All deer get 4 mass measurments no matter how many points off the mainbeam they have.

Thank you.

The key also is where you take that mass measurement.

This...