All the imputs into Hoadley must be correct. I don't have Hoadley loaded up at present, but will let you know the imputs I use when I get time.
To get a match between market price and theo price in Hoadley, you must have the correct amount of volatility entered. (Hoadley can work out the IV for you based on the current market price - there are buttons for this purpose - they are positioned in the upper right hand on my Hoadley screen.) Dividends and xdiv dates must also be properly entered if they are applicable to the stock you are analysing.
Thx for that, it looks like it is worth purchasing now.