The DAZ males (and females) are not built to be normal sized, normally proportioned figures - Go over to hivewire forums and read through Chris Creek's posts on Dawn & Dusk development.  Proportion-wise, the main Daz figures (and Dawn & Dusk) are freak shows.  It is one of the reasons that David 3 was still in heavy use after M4 rolled out - it was a more realistically scaled character.

M4 was built off of V4.

Dusk is being built off of Dawn.

No surprise that they seem a bit "off".  They aren't designed from the begining as a male mesh.

This is why I gravitated back to the SM figures for my go-tos- they are realistically proportioned & sized figures.