Creating Custom Attributes for the Player

Hi there!

I have a mod that stores values inside the player as Capabilities and am thinking of switching over to using attributes instead.

It currently stores integer values for weight, stamina and stamina regeneration for each player, which are accessed on both the Client and Server frequently for GUI and Logic.

I'm not too familiar on the attributes system so if anyone has the time to answer these questions I would really appreciate it!

1. Is it worth switching from Capabilities to Attributes for these values?
2. How would I go about creating custom attributes for the player?
3. Do attributes automatically sync for the Client and Server? With capabilities I have to send packets myself somewhat frequently.
4. Do attributes reset when the Player dies or enters another Dimension?

Thank you so much for your time!

Note: I am aware you can add attributes to the player using a Mixin, but I would rather avoid doing this.