Quest X-15 Build, Part 6, Balsa Filling and Tube Quality

After the balsa was filled with CWF off the model,
The CWF was sanded smooth with 400 grit.

TIP: After sanding down the CWF all the corner edges were very lightly run over with 400 grit. I'm not trying to round off the squared edges, just "kissing off" any roughness on the corners.

I had an older Quest X-15 kit in the build pile. This kit was bagged up in China.
Look at the body tube finish on the face card model. The tube is lumpy with apparent seams.
The Chinese made tube is pretty bad. There are wide seams and it doesn't appear to have a final thin glassiene wrap.
The tubes I ordered directly from Quest in Utah are the better quality you'd see directly from Euclid. The rough tube was replaced with some extras from the spare parts box.