Take a look at the photo at
http://thebicycleplanet.com/site/page.cfm?PageID=77

Do you agree that the bike appears to fit properly? Are you of the opinion that no weight is being carried by his arms? I expect that he might be able to maintain that position for a very short time without the support of his arms, but, if his arms were not carrying part of the weight, his back would be sore pretty quickly.