I'm not sure what I'm supposed to think about it. However, I think that after 20 frames they should be better at welding than that. If someone never tries to get better, they can splatter a weld on over and over and never get better. They should take the off-cuts and practice welding them together. I just hate to think about what their miters look like. After 47 frames, their miters should be pretty close to perfect.