I can smell the money.

In my opinion - every script can offer a stable income.
It is not important it is written by me or not. The important that the script to exactly follow some strategy.
And the stable income - so here things get to be more interesting.
So as stable income already don't depend of the script itself.
Stable income depend of GOOD SETTINGS that are applied to the script.
So two persons may have different result with same script (because of different settings):
- one will lose - and will blame the script
- other will win - and will praise the script
And both of them will be little incorrect - so as the script don't do anything more except that it follow the strategy.
The other part is the SETTINGS - this is the part done by you - MEMBERS OF MMM.
Only you in good comunication between all members may find good settings, and do any script to to be the winning one.