Copy a range to different sheets depending on first cell contents

If you don't have data in row 2, you will keep pasting to the same column until you do, then you will move across one.
Does this version work:

Sub ProcessWorkbook(wbk As Workbook, wbkDest As Workbook)
    Dim Letter As String
    Dim rngDest As Range
    Dim wksDest As Worksheet
    Dim iCol As Long
    
    Letter = wbk.Sheets("Results").Range("A2").Value
    Select Case Letter
        Case "A", "C", "M"
            Set wksDest = wbkDest.Sheets(Letter)
        Case Else
            Set wksDest = wbkDest.Sheets("Else")
    End Select
    With wksDest
        If Len(.Cells(2, 1).Value) = 0 Then
            iCol = 1
        Else
            iCol = .Cells(2, .Columns.Count).End(xlToLeft).Column + 1
        End If
        Set rngDest = .Cells(2, iCol)
    End With
    wbk.Sheets(2).Range("A1:A30").Copy
    rngDest.PasteSpecial Paste:=xlPasteValues, Operation:=xlNone, SkipBlanks:=False, Transpose:=False
End Sub