Four SP-D molecules: 13, 14, 15, 16, 17? peaks per hexamer

n=4 dodecamers, with many different signal and image processing filters, giving rise to about 114 different plots and peak numbers; the peak number summary of each dodecamer provides: n=4, 17.25 total peaks per hexamer+2.48. This is still just four molecules.

1) N term peak = @20nm which is divided into two sub peaks about 50% of the time.
2) Tiny peak of @3nm either side of the N term peak
3) Glycosylation peak @9nm, either side of N term peak, and consistently composed of two parts (two peaks)