DWG SNX-L04 shows L04-03 Spacer is .090" thick, but F13-06 L&R Lower Longeron are .125" thick, leaving L04-09 too low. Make spacer from .125" stock instead of .090". Drill 1/8" & cleco L4-02 L&R to F16-06 L&R Vertical Angle, F16-04 Support angle, F16-05 Aft Tunnel Angle on F16-03 Aft Tunnel Web Assembly. Bolts called out on DWG L04.
