Hello guys, I'm having trouble mirroring the biceps and the triceps, somehow I can't get the position right, It looks uneven when I take a look at it, any help?

Here are some templates for them.

http://forum.toribash.com/showthread.php?t=124495

templates can also be found in the shop, here:
http://forum.toribash.com/tori_textures.php