And I think Tim's method works fine too.. I've used it before. However I too find I'm lazy and forgetful, and the simple one valve moves adjust the other method is easy to remember, no further instructions necessary, nothing to look up, works on just about any engine with an even number of cylinders. Even used it on a Marmon V16, and with that many valves to watch writing down the firing order and knowing where to look for the next two to move did help.
I'll add that my preferred method does take two revolutions of the crankshaft on a 4 cycle engine, but my current truck with a 2 cycle only takes one revolution.
Grigg
