It does help the clutch and gearbox longevity to rev match when downshifting.

However, having said that, I can't think of an H2 driver who does it in a race. I don't do it, and Bryan doesn't do it.

I can put on a grand show doing the cloverleafs like Unkefer and Spencer will tell you, but then it all disappears when I go out on track.

Hey, I never claimed to be good.