Without the benefit of California temperatures (and in view of painting requiring one of at least fifteen degrees centigrade), whilst you cannot always raise the temperature in the workshop you can still bring the frame indoors for a heat-soak prior. I recommend use of a white primer too as it guarantees the colour of the final coat. All in all then, a good day's work.
We're pushing boundaries here with a choice of 1/16th alloy section and prior painting, standing my 77 kilos on the centre-section it flexes by around an inch. Aircraft do flex, but ideally not to the point of failure. It is unlikely tho' that we shall be able to load a seat, passenger and battery-packs on that centre-section without the shock-loading of a heavy landing causing such a failure.
We shall see then subsequently how the 'clip-on' module in the shape of a flight-deck will also pitch its weight mainly (or exclusively) on the four corner-points, transferring those loads directly to the undercarriage ~ one benefit of the flexibility of our design.
