it will buff high lvl archers with maxed MW a lot
Not a lot, but it's true, it will be a buff. We're aware, and nerfs aren't off the table to keep effectiveness the same for ranged.
Say I have 50 in 1h wpf, and 159 in archery using the old system. What would that be like in the new system. Any change?
Pretty much exactly what you have now, +/- one ore two points in your main.