As recommended above, the correct tool is the way to go if you are doing a lot of headset installations as in a bike shop or if you run a bike repair business. It's an extravagance for the home mechanic who may install a new fork and headset only a few times in a decade. Either the long bolt or deep socket methods work fine for occasional installations where time is not of the essence.

Note: No matter how you install the starnut do not stand the fork on it's dropouts while pounding it in.