Courses question

[Dices]

Mowgli77 wrote at 'Ratings and Queries - Suggestions please' : " I also think it is important to take Lingfield, Southwell, Kempton and Wolverhampton as totally different form. There are horses that are Lingfield specialists as an example but can't win on another all weather track. This will be important in July at the race day." The idea is that the form from lets lay Lingfield is not valid at Kempton because they have differrent characteristics. Many of you know very well the different courses, so supposing they have the same going how can we "group" the differrent courses and count the form from these courses as valid for the next race at similar course? Uphill, downhills ..... what are the factors that make differrent courses "similar" ? Any possible list of these similar courses according to own oppinion?

[RussP]