More work on the left wing has been completed. I have installed the two wing joining roots which attach to the fuselage. I added the additional partial wing ribs and cut the front spar in the two locations for the pylons. I have added additional gussets and some balsa at the end to help blending from the front and rear spar to the wing tip. Very minor additional weight but I thinnk the strength and astetic benfits gained far outweigh the several grams I added.