I asked this questions not to long ago and received some amazing tips.
I believe I weighted the limbs about 2-3 inches slightly above the ankles and wrist. I can’t remember if I used plastic poly-pellets or glass beads. You don’t want to fill up the entire limb. The doll would be HEAVY and arms would “sag”. Normally I weigh my limbs with plastic poly-pellets so more than likely that’s what I did. The body I put most of the glass beads in the bum and then in the shoulders. I then used the piping installation in the head and inserted it to about were the belly button would be. Didn’t weight the head.