Again..the joints are no different on a new/updated plastic versions. Which is the point I've tried to get across. The joints can be exactly the same on plastic or DC. That is not a benefit of one over the other. It's the same on both. The difference, the ONLY difference, is that some of the plastic pieces are replaced (externally) with diecast. That has nothing to do with the construction of the joints or articulation or LED or accessory. They could make the new figure, this figure, exactly the same in plastic and the joints would be identical. No different. At all.
As for the better balanced....first it depends what pieces are D.C. And what are not. But overall it's not really the case. To have a figure made up of 60-70% plastic then throw in a little bit of metal doesn't generally mean it's balanced better. Hot toys does a good job of engineering it to balance but they would balance better with plastic then diecast, unless all the DC is in the lower legs. It's like replacing your body parts with lead. If you are strategic about it you can make it feel well balanced, but that doesn't mean it wouldn't be easier to balance with flesh or plastic or something similar in density and weight to the rest of your body. If something doesn't balance well making it heavier usually isn't going to fix anything.
As for the joints holding poses better or more sturdy that's just not the case. More weight equals more stress which is not better. Again, this is a DC v plastic conversation so if you replaced the diecast with plastic then the joints take less stress, and have less of a chance of getting loose or not holding a pose. Since, as I said they can use identical joints (and do) on the plastic figures.
Anything they can make with diecast materials they can make with plastic. Which means the only difference is in the material, which means the only difference is what each material has the ability to do. Diecast only advantage over plastic is weight. As I said, how you feel about the weight is a preference. But it doesn't add articulation, or possibility, or structure. Everything you can do with DC you can do with plastic in those regards. At best (or best case scenario) they are equal. Sorry but diecast does not add anything that can't be done exactly the same with a plastic figure (or a figure not labeled diecast). Lots of the "plastic" figures have metal components in them. The diecast part that's used to sell the figures has nothing to do with the internals of the figures and is all about the external pieces and that weighty feel they add. The joints on say sneaky or shotgun will be pretty much identical to the ones on mk45 and this.
