I have a free muscle morph (and a vein map too btw) for Mike3 on my homepage. Also som e face morphs for him. Nothing much for M4 yet (not for free at least, and not Japanese anyway)

Lately it seems like most of the Japanese sites has gone the way of the Dodo :( A lot of my links are dead :(

Maleposerotica dot com also has some nice freebies.

FREEBIES! | My Gallery | My Store | My FB | Tumblr |
You just can't put the words "Poserites" and "happy" in the same sentence - didn't you know that? LaurieA
  Using Poser since 2002. Currently at Version 11.1 - Win 10.