For the record, let's state that from the low the current position gave BACK about 340 YM points.(must be a new record too). Even if the market goes down in the next 90 days or whenever that is just BAD trading.
Let's discuss this Gann level methods. Here are my 2 problems with it:
1. You can pick any channel (let's say YM 650-700) and the market will eventually move out of it, so you don't need any scientific method to calculate the Gann channels.
2. As it has been shown by your trade, there is no exit point/strategy, once you are in the money.
So it can be a good device to enter a trade, but you need to use other things to exit the position.
Again Surf, I wish you the best, but it looks like you want to be correct instead of making money...