More of the same. Lots of trimming, fitting, and bracing to ensure that the landing gear can retract without any binding and to get the secondary sub spar into correct position. This sub spar runs along the top of the ribs, from near the leading edge of the root rib, diagonally outboard towards the main spar of the 6th rib. As it goes outboard, it also climbs. Add in the fact that the ribs not only change size, but the airfoil also changes from the root to the tip, well, getting this sub spar into proper place isn't so easy. Did I mention that it's not even shown on the plans? Yeah, a bit of trial and error to get it to fit properly. Eventually, epoxied the secondary sub spar and bracing into place. After that had dried, the structure was stiff enough to elongate hole for spring return. It looks larger than necessary but there's a heavy vinyl sleeve that zips on over the spring to protect everything. Need clearance for that too.
I couldn't wait any longer, I just had to start planing the primary sub spar to shape. A few minutes with the hand plane resulted in a spar cap that roughly matches the rib shape and left a lovely pile of shavings on the floor.