Yup I got the systematic and non systematic done fine, must be an error somewhere else.
Just had a shufty at LTS. Unfortunately it wont work for all my types! Its just the theory I'm using.
Ah well. Will have to spend a week in a darkened room recalculating it all airbus style if theres no other resource..
drat drat drat.
Thanks for the help anyhow
cheers
nobby