I don't suggest you skip the blooming since it will affect the coffee flavor. The coffee roasting process produces carbon dioxide gas as well, when the hot water hits the coffee grounds, the CO2 will bubbles out. You'd better let the gas escape for 30 to 45 seconds. That's why you see the coffee bed swells when you first pour the water. Usually it's good to add 2 times of the coffee weight for the blooming.