TRM
I subscribed to & papertraded TRM for 3 months. As with most technical analysis the historic charts seem to work very well, but when using the system in realtime flaws become apparent. In particular their charts are "adaptive", so that for one or two days their "signal line" (on the medium term sigma band charts, or shorter term signal band charts) may show an entry signal, but after factoring in the next day or two`s data that signal can often disappear. Also, when prices cross over the +/- 2 or 3 sigma band lines (which are standard deviations from a long term trend line) they can often stay there for a very long time or continue in their prior trend, rather than reversing within days as implied by TRM (their website confidently states a 98% or 99% probability of a reversal at these lines, which may be mathematically correct, but it doesn`t mean the reversal will occur right away). The "cycle decomposition charts" & "curvilinear envelopes" are interesting, supposedly for gauging the current trend, but in practice of limited use, due again to the adaptive nature of the indicators. I did observe the sigma bands working very well on a few occasions, but in my experience the signals given by the system weren`t reliable enough for me to use them as a stand-alone trading system, and their monthly fees were too high to keep subscribing as a secondary system to help confirm other trade signals. TRM allow you to try out their system for only $2.95 for 14 days, so I suggest you give it a try. If their testimonials are to be believed many of their subscribers love the system. The guru who developed the system from Hurst`s work, James Maggio, is very helpful if you have any questions.