Hi there,
I have tried all the suggestions with the copy pasting , and the line to start and stop.
But i am encountering problems with the loft tool. As it keeps twisting sometimes but sometimes it works., but now i cant seem to find any faces.
When i try and loft it , it makes 0 faces. here's the skp file. and what i want to achieve.
Basically making a curved truss . As shown on the left.
Thanks for your help. its a weird prob... 
