As an introduction to systems trading, I recently bought Wilders New concepts in Technical Trading Systems. I started programming a few of them into Excel spreadsheets, and especially like the Reaction trend system. I don't have extensive backtesting facilities and also the decision about buy, out and sell days sometimes seems to be subjective. Results so far seem quite reasonable, but I wanted to ask if anyone had done extensive research into this and found it to be a usable and robust system. I do not trade for a living - I live in the Uk and trade the e-mini during the evening. This system seems to offer me the facility to place index/stock trades during my working day for some reasonable background gains. Thanks.