Clutchless gearchange ok?

[midden]

engine braking to my knowledge was the thing to do untill pads and shoes became chaeper. now proper braking technique uses a mixture of engine and brakes, control of vehicle can be lost if taking engine out of drive.  As for engine damage you'd be talking driving high speed  dropping from 5th straight in to 1st or 2nd not just riding in a lower gear than needed and releasing throttle to slow down