Double Clutching

In the English language this term unfortunately describes the process of rev matching in both upshifting and downshifting. I’d like to distinguish between them. Let’s use two different terms:

You do “double clutching” on the upshift:

lift off throttle -> depress the clutch -> switch into neutral -> release the clutch -> depress the clutch -> switch into a higher gear -> release the clutch -> step on the gas.

You do “double declutching” on the downshift:

lift off throttle -> depress the clutch -> switch into neutral -> release the clutch -> blip the throttle, increasing rpm in order to match the higher rpm of the secondary shaft in the gearbox needed for the bigger diameter lower gear -> depress the clutch -> switch into a lower gear -> release the clutch -> step on the gas.

Blipping the throttle to precisely match the rpm is no doubt an acquired skill, but if done properly it affords a silky smooth downshift.