Finished preparing minor details for forward fuselage sidewalls. First time experience of making upper longerons Wrong 3 times! Just kept messing up the slots, positions, etc. Finally got a perfect left hand upper longeron. Felt like a whole day spent making one silly angle part over and over. Re-did right hand also to match quality. Riveted doublers and strike plates to them. Laid out all parts/gussets/details involved in side panels - ready for assembly.