I was a SL veteran from ~2011-2013 at my peak, and after 5 years have come back and sticking my feet into the world of mesh bodies and mesh heads.
I went ahead and started with Maitreya mesh body, which I'm starting to get a grasp on. So now I'm trying to work my way through some mesh head issues.
Trying to stick with the most popular brands, I gave Catwa demo a try.
1) First, Catwa mesh heads come with their own Alpha layers (full body alpha, and head only alpha). You can't use both the mesh head alpha and then mesh body alpha, so I assume use the whole body alpha from the mesh head?
2) Next question is, does the Mesh head color take precedence over the skin tone of your avatar? Meaning, I find a Catwa mesh head I like, then I must use Maitreya HUD to match the color of Catwa mesh head; I can't do it the other way around? (Meaning, make the Catwa mesh head take on the color of my Maitreya mesh body).
I hope these questions are clear and make sense to you all. I'm really, really pleased with the addition of mesh bodies and heads to SL! Now it's just a matter of trying to get my head around using them, pardon the pun!