1. I mean:
Killbutts
rather than:
Run "Killbutts"
2. For example here:
Range("A3:B" & LastRow).SpecialCells(xlCellTypeBlanks).FormulaR1C1 = "=R[-1]C"
you would be better off explicitly stating which sheet is being used. The odd thing is that sometimes you do it and others you don't - such as in this part:
        With TwoB.Sheets("Worksheet").Range("A1")
            .PasteSpecial Paste:=xlPasteValues
            .PasteSpecial Paste:=xlPasteFormats
            Range("A1").EntireRow.Delete
            
            'Refigure our last row
                LastRow = ActiveSheet.Range("A" & Rows.Count).End(xlUp).Offset(-1, 0).Row
where you have two fully qualified Range references, one unqualified one, then one qualified only with Activesheet.

3. That doesn't tell me what the values are.