I am tall with really long arms and always have used that excuse er umm I meant logic...
Usually guys with really long arms are naturally good DL'ers so if Konstantin has short arms to make him good at P/U's the he is a super freak at the DL with over 900 lb's raw.
All I know is I am going to do 20 DH P/U's and 40 Kipping P/U's in a row by my 40th B-Day next year. Long arms or not.
What we think, or what we know, or what we believe, is in the end, of little consequence. The only thing of consequence is what we do. -John Ruskin