As the chassis begins to progress and become more and more complex and gets turned this way and that, my concern is that it is easy to miss a weld out? So what I have done when each section is finished I spray the joint with a bright coloured aerosol to " show" it as finished then it shoulld be harder to overlook any joints, what do you think?

sounds good

thats far to sensible for a fri night

sound idea that

That's brilliant. I wish I'd done that.

Remember to either degrease the joint well so the paint sticks, or to remove all the bright paint before putting on the real stuff.