I don't mind using her arm as baseline as long as the arm is positioned in the same way so it's comparable and that the base of the cocks and her elbow is clearly visible in the pictures.
This is not the case in these two pictures though.
Besides the guy in the first picture can't be used as base. At least pick a clear measurement as your base for comparison - this one is just ludicrous.
Guess I have to be extremely sceptical - as I see it the measurement start somewhere near the 2" mark and ends somewhere near the 8.5" mark. How this adds up to 7.25" exactly is beyond me. Must have missed that day in school.
If your idea of using a specific girls arm as a yardstick shall be plausible, you at least have to make an effort to set the baseline correctly.
Based on the three pictures, I might as well call the first guy at 6.5", claim the two next pictures are comparable, claim the first guy is an inch shorter than her forearm, Dingo an inch longer.... And guess what 6.5+1+1 equaled 8.5" last time I checked...
This thread is about methodology not unsupported claims. If that's your aim, I suggest you make a new thread for it.
The forearm measurement pictures you are talking about are both edited/fake. Sdp loves those photographs because they prove his 8.7 claim. I can't be accused of hiding those photographs because I was the first person to cite them on this thread. But I cite all evidence. This one debunks this entire thread:
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You say Piper Perri's forearm is 8 inches long. Thing is, his dick is longer than her forearm, it's beyond it onto her hand. That's clearly 1" or more added there.
The above photograph disproves the 8.7 inch claim for Mandingo. At a minimum you would have to admit Mandingo is over 8.7 inches from the above forearm/hand measurement.