I have been reading a book recently about trend following and how to go about following the methodology. Seems very straight forward and simple as far as the "system rules" are concerned... Entry, stops, exits, position sizing etc... It looks to me that the hardest part to trading a trend following system would be the Psychology in riding winners (being willing to give a large portion of your profits back in order to try and capture the larger move-*upside volatility*) and also being able to go through long periods of drawdowns when the markets aren't "trending"... but the results as far as compounded rates of return speak for themselves. These guys make a lot of money when it is said and done.. or so it appears.. Does anyone have any real experience in trading a long term trend following methodology and what would you have to say about it as far as negatives and positives?