Slow Stochastic Oscillator.
Hi Jay. As you suspect, the Slow Stochastic that I use is just the ordinary formula, but simplified by 4 modifications :-
(1) %D moving average is not used as the trigger and is not plotted at all.
(2) A 50% crossover is used as the signal level, rather than the usual 20% and 80%.
(3) A much longer period is used for %K, in this case 80 days rather than the usual 5 days.
(4) Generally, smoothing (slowing) is not used.
These modifications mean that the oscillator can be used just like an ordinary trend-following indicator.
I got this idea from Colby and Meyers "Encyclopedia of Technical Market Indicators". They found that such a setup outperformed the original system as developed by George Lane.