Having dipped my toe into the Q&A's I can see the appeal of improving the "By the Book" system.
I suppose maximising returns over the "long term" is my aim. Drawdowns and long periods of being underwater in a simple Buy and Hold portfolio (J L Collins) make it unworkable for me. I'm looking at AIM (or a variation) to offer decent long term results using a simple system to take out the emotion of investing.
Starting to look through this website, downloaded the Aimbarebones spreadsheet only to realise I had one from my previous flirting with AIM. The current one doesn't provide a hold zone. Was there a reason why this is not included?