Florida Pick 3, the most recent draws.
Let's start from oddities.
Is their RNG functioning properly? Where are the doubles?
Last 30 draws (ending July 17, 2020):

Haven't seen such a low doubles percentage for a while. And they've been trending down for over a month and half. Are they going to rebound in a sudden explosion? I would keep an eye on that. Remember - doubles are the money makers.

Well, looks they are not alone, singles can make money too.
8 cold digits selected from 15 draws and checked for the last 30 draws.
1 quite large cluster: 15 draws, 12 wins, all singles. Pretty good for singles.

The totals for the singles also not too bad.

Now a question: what is better to play - 7 or 8 digits? Generally 8 but not always. On occasions 7 may be a better option. Here is how.

8 digit totals for a backtrack:

And the one below is for 7 digits:

Fewer wins for 7 digits but better ROI because the costs for 7 digits are much lower.
And 7 digits also can generate clusters. Example below:

8 draws and 7 wins. But clusters for 7 digits are rarer and generally shorter. Pick which system you like more.