Here is some information on WLI/WLIG based model that I mentioned yesterday (click on the links in the document to learn more about the model).
This model is in sell mode since Jun 1st. Historically, an interim low occurred 20-30 trading days after a basic sell signal, followed by an up move that peaked around day 65, and then came the plunge

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Please note charts below are copy/reproduction of the original work reported by G. Vrba.
Average Perfromace after Sell Basic
Individualized Performance of all signals since 1968
And this is what happened after day 65. Odd are heavily stacked against any substantial gains.
This time, trading day 20-30 corresponds to June 29-Jul 13.
Caveat: Last year markets started to fall after day 50 (making it the first failure of the system). This also led to revision of the model (by the author) to initiate sell after 7 days of initial signal. Also to note that signals from this models are for long term investment.
However, these can be helpful in ST trading.
Combing short term signals generated by VIX (that I have posted in the day trader forum here) or currency SWAP with signals from this model show an interesting pattern. Long trades initiated by the ST setups (VIX or CS) perform substantially better when WLIg based model is in “Buy” mode and short trades do exceptionally well when the model is in “Sell” mode. Table below lists cumulative returns under various combinations.

- Performance.png (6.12 KiB) Viewed 5815 times
*CS = Currency Swap, based on EURUSD or AUDUSD pairs.
VIX, CS signals derived from hourly data, WLIg signals on daily basis. ST signals last from few hours to few days. Although these setups are for ST trading, the time horizon does get extended in protracted up or down moves (to your benefit).
Periods Analyzed: VIX-May 2007-Present,# of L+S trades=114, B&H Return: -10% (as of close of 6/28/12)
CS - Jan 2009-Present, # of L+S trades=116, B&H Return: 41% (as of close of 6/28/12)
If your find this model interesting and would like to know more about this I will be glad to answer any questions you may have.
Above is provided for informational purposes only and shouldn't be considered an investment advice or recommendation to buy or sell anything.