Does AMR have a way to calculate stat weights to us in Pawn?
Yes – after you run Best in Bags, there is a button at the bottom of the result table that says “Send to Addon”. In addition to letting you send your gear sets directly to the addon so you can automatically equip them, it shows a pawn string at the bottom that you can use as well.
This string is updated each time you optimize your gear – you should update it frequently. Stat weights should generally be used only as a rough suggestion, and they are most useful for making just one or two changes to your gear before they should be recalculated.