1. Can you store feruchemical charge in a metalmind that has been swallowed?
This has been brewing for almost a year:
2. Let's imagine I am a Nicrosil compounder, have a large supply of Nicrosil stored with a small amount of Allomantic charge. (For simplicity's sake, let's say Nicrosil Allomancy) I then swallow all of that Nicrosil, and burn it. As the power of Feruchemy is being bolstered by Preservation's own power, and if I have enough Nicrosil, can I fill myself with enough investiture to wrestle control of the Shard away from Harmony?
Edit: If a side character foolishly tries this and disastrously fails, or is mentioned trying this, I will laugh my head off.