Which parts of turtle system have stopped working and which parts still work?

I may have made an error...but i calculate that from 2009 to present date, they have broken even. I don't like comparing to the S&P500 (but since everyone else does...), trend following compared to the S&P500 has done very poorly.

 

Index I quoted was up ~10% cumulatively 2009- 15, so only ~1½% /year -- you can call it zero. But of course some specific trendfollowers have done well.

 

Any chance you can tell me how i went wrong since all i did was use the numbers below and compound them?

 

1.029*1.079*1.015*0.84*0.823*1.391*0.922 = 0.99917 which is so close to 1 as to say break even over the period

 

I just took the arithmetic average, not compounded. In any case, zero'ish however you look at it.