TBH Baba I dont see the point in that stuff. It doesnt look as good as mine.
Theres no WAY you would be able to bend the padding I have in mine like that. So I can only presume its cheap tat and not reccomended for anythign more than knees protection etc.
If you look at the door bar you can get an idea of the way its offset cut, so you can put it on the roll cage without getting in the way of the cars structure (if that makes sense)
I think Carter used 5m and he's tight as arse holes with uneccessary shit. I used 6m so I could get better runs of padding, rather than a load of off cuts all over the place. :0