are you saying it looked like don had synthol in his arms? I believe don had those arms before synthol.....
I dont know wether he had synthol in his arms or not, nor if synthol was available at the time, but he had a funny disproportionate look to the arms, where the bis were overdeveloped in relation to the rest of the limb, and also overpowering other bodyparts.
Remember thinking that already back in the day when I saw a Flex shoot with Long and Flex.
What do you think, natural arms?