It would be scored as is: Typical. I am not a official scorer but have scored a number of deer, that is what I would do and have been taught. However you mentined they share the same base position on the main beam, does this mean they are actually forks or their is really no seperation between the 2 points, like in G1 & G2. B/C if the come off the main beam (regardless of spacing), they would be scored as G3 and G4. Then the 4H measurements would be as per usual and done in the crock of those 2 points) Again that is my experience and teaching, some body may prove this to be wrong. But it sounds like a typical to me from your description.