PA Bow/Flinter

I've got a quick question on scoring antlers, specifically spikes. Yea I know, who cares what a spike scores, but I want to know what my first buck scored. Here's my question...

I know that every antler gets 4 circumference measurements. On a standard 4 pt antler, the last circumference measurement is taken half way between the G-3 and the tip. Now on a spike, would you take the same measurement 1/2 way along the length and us it four times.....or....
Would you split the antler into 5 equal lengths and take 4 seperate circumference measurements at each progressive mark.

IE: Say this is your antler:
[.................................................. ..........................................]

Would you do A)
[................................................(1 )........................................]

Or B)
[...............(1)..................(2)........... .....(3).............(4)..............]

I hope this makes sence, let me know if you are confused and I'll try to clear it up.