I no longer see a legend on the plot showing which color is NUS and which is HP. Please add that back in.

You haven’t labeled the axes in the graph. You say “the plot of a cushion curve which shows the deceleration vs psi of the drop plate” and by convention when someone says y versus x the y axis is mentioned before the versus and the x comes after. However, I don’t know that you are following that lingustic convention.

Several things have the units of psi. What thing are you talking about?

It would be better if you just label the axes with names and units.

The title of the graph is also wrong. It’s not a Convergence Test, it is a Cushion Curve comparing two models.