Weights of bundled products

Hi, I have another issue with the premium templates and thought it would be worth having a second topic.

I have set the packing slip template to display the total order weight at the bottom of the page, however it appears to be calculating the weight of the bundled products incorrectly, for example it is showing a 70kg order as 133.56kg

The page I need help with: [log in to see the link]