Have to agree with your comments about field sizes as well Crash.

In Melbourne we don't get that many metro tracks that are heavy these days.

Think the greatest danger with wet tracks is when they occur during the middle of a dry patch [summer which has happened] as you're generally faced with a group of horses that have no recent exposure. Form can become guesswork.

Generally I'd say wet tracks don't have to stop you betting, although it depends on your own form factors.

I'd say fitness becomes an added factor to consider. Have to be careful about backing horses first/second up.

Tempo of a race can become an added factor, especially where you have one clear leader in a race, where it can be hard to make ground and run down the leader.