I am a trend follower and manages OPM (not that huge) and I can proudly say that trend following still works. Regarding the Turtle's original rules, I tested on some major markets and it doesn't work anymore.
%% Good points. Turtle Trading may have worked much better before IBD[Investors Business Daily] front ran him by 5 days; IBD uses 50 day moving aVerage LOL I did use 55 moVing average in bear of 2001, but those days are gone forever.
%% 50 day moving average works better than 55, . BUT 55 is much better than 65 dma , unless you trade DOW/DIA