Haha. I was starting to wonder. I think you being a tiny thing is throwing us all off. Cloud would not look like that compared to me at 5'9" and fluffy. While he is a good sized dude I'm starting to feel that he's not as big as we were originally thinking especially if some of those weights are done with a couple of feeding under his belt. We always try to weigh after they relieve themselves.
Tests, nah. He's young. I honestly feel that if you back off his feeds a bit and continue allowing him his exercise he'll be just fine.