The early Masterworks often used material from Marvel reprints. In some of the original early Spider-Man volumes, the boxes for little notes added to Marvel Tales can still be found on pages.

When the decision is made to use one stat over another, the overall quality of the image dictates the decision.

If you had an original stat where all of the line art was crisp but a few lines are missing, or a second generation stat where all of the lines are thickened, but they are all there - editorial is likely to select the first generation stat - and wisely so.