Hi Lewis,
>>I've tried recreating that surface with network
Attachment with layout for NetworkSrf (This eliminates polar uv layout)

Interesting approach EDDI, does it look same from side in quad view ?

And how did you split edges/curves at exact position, by trimming or there is faster way to split curve/edge ?

>> And how did you split edges/curves at exact position
SplitHelper created with Multiiso script
http://moi3d.com/forum/index.php?webtag=MOI&msg=6841.3



Outer edge with > STRG + C > STRG + V > Join > Trim with AddTrimPoints at SplitHelper position and option keep.
Middle lines drawn with curve through points.

Result Old uv layout and new.

Good, that now has lot more sense and I understand how you did it :).

Thanks

Wink