Their two existing mechanical systems have averaged an annual...

Their two existing mechanical systems have averaged an annual 19.24% and 23.26% return over an 8.6 year period, including coming through the GFC. Looks pretty good to me.

Much better than my 10% to 15% odd loss in the last two years, going solo.

Since 25/1/01, 100k invested in their systems would now be worth $463.141 and $617.948 respectively. Looks pretty good to me.

This monkey makes money. Have you done better than this Kenneth?