Hi guys!I am new to this(and computers)so please bear with me!In reply to Puntz:Malcom Knowles has another book called Trifecta Betting and Handicapping,which is still available from Racebooks Australia.As they have recently moved from Canberra to Wollongong I am not sure of the adress,but if you go to http://www.inracing.com.au you can email Malcom personally.I purchased this book a few years ago,and he threw in some free software withit!!!It is a brilliant study of trifecta betting,and an updated version of the one you were seeking.I cannot recommend it(or malcom)highly enough,and I gaurantee it will change the way you approach trifecta betting forever!!If you were to combine his principles with the propun ratings,I guarantee you will never look back!As to my own line of thought,I will never take a short priced favourite to win in a trifecta combination,the reason being that many punters will stand it out to win and base there other selections around it.In fields of up to 12 it only costs $66 to stand out the favourite with the fieldxfield at a half unit,well within the reach of many small punters hoping for the fav to win and two roughies to fill the placings,thus eliminating any value at all!I have found over time that if the fav runs third,the divvies are better,but if it runs 1or 2 you get huge unders.It is better to leave the fav out altogether.Sure,the runs of outs will be longer,but at least when you hit one it is worth it.If you pick your races wisely i.e.where you think it is a false fav and the rest of the herd doesn't,they will overbet it,opening the gate for a really good divvie,because the pool will be full of mug money.This is blatantly obvious on Melbourne Cup day,when the pools are enormous on trifectas with once a year mug money!That is the day to have a go!Sorry about being so long winded,I'll try to keep it shorter next time!Cheers,and good punting!!!!