Went through and finished formatting my code -- it now additionally outputs, # of exposures and exposure time. Changed my range to 7300 to 8800 A, and this allowed me to lower my shift range to 10. Next up, calc signal-to-noise ratio in the flat part of my curve to make sure my velocities aren't too out of whack. Also hope to write up my work for the last couple of weeks in LaTeX (note to self: remember how to do that).
Still haven't run through the entire sample with my velocity calculation code, but I'll do that tomorrow (I think), once I'm sure the kinks are all out.