Quote from billpritjr:
I chose 7/35 because it exhibited the best trend following characteristics without too many false signals or whipsaws.
Back in the 1950's, Richard Donchian "invented" the 5/20 MA cross method (amongst others), numerous studies and research since, shows that adjusting the time variables for each particular stock is probably a good idea, since each stock is its own animal.
You can take the 50/200 to the S&P 500 index for major bear/bull trend identification.
I tend to trade on the 1 to 3 month time frame, so my faster MA will be 5-10 days, and the slower will be 20-35 days.
NOTE: Some stocks just do not work well with MAs, you need some that trend for long periods, both up and down. To blindly buy a stock because its MA's crossed today is asking for trouble.
I know.....been there, done that!