Raceboy77's got a new tips video on YT, this time going through shifting gears.
I've already used his tips on figuring out where the top of the power band is, as well as coming out of a turn in the right gear and shaved off time. Used the Vintage Touring league to learn to use manual w/clutch too, the C-class cars aren't that fast so it's been nice (and next week is Japanese Street Kings and C-class again).