been away for a little bit guys, some interesting conversations going on, glad to see the thread is alive and well.
There are so many different ways to pair trade, the opportunities are really limited to one's own imagination. For example you could pair up the Australian 10yr bond with the US 10yr bond then pair that ratio against the AUD/USD fx rate, ive seen charts of this and this synthetic pair is well correlated, produces good trading opportunties and are some of the most liquid traded markets in the world, or another idea is that you may be bullish on oil and go long energies and short airlines, you could basket the 2 groups together to create one ratio and trade off that. Lots of potential strategies out there, I think thats what really good traders do, they have a system but they know when to up size, down size, not trade, act responsively or seek out special situations.
In case you guys don't know PTF just released another update, pretty good improvements, they have improved backtesting, allow for custom exits based off the +/- value, time based stop, a new triggers window to see all recent trading signals, removed a few bugs and have added the ability to have the trading signals sent to your inbox or twitter channel for alerts, ive set it up to be notified by email, much easier to be alerted to potential trading opportunities that way and I receive them on the go aswell, very happy they have done this.