Thanks for your thoughts Alan and AF. I have looked at this pretty closely and have decided to stitch right up to the front spar top and bottom. the bottom was straight forward. The top required drilling in through the fabric and fibreglass using first a 2mm and then a 3mm drill bit - this resulted in a small raised section (fabric I think) around each hole. I used a clean pointed tip soldering iron to quickly push into each hole and this resulted in a nice neat flush hole. After a little experimenting, I realised that I could not use the running stitching method if starting from the top side of the wind as it was not possible to push the needle forward to the next hole in the fibreglass LLE ( without damaging it as it is not as flexible as the fabric). Instead, I have turned the wing over and it possible to run the lacing the width of the LLE. I have found it is easier to maintain a good, consistent tension on the lacing using the 'running' lacing method. Anyway, I will keep going tomorroe and post some photos.
cheers
Ross
Mt Beauty, Victoria
OZ