So in Mens tennis at the Australian Open the balls are changed firstly after 7 games, then every 9 games after that. After the first 3 or 4 games the balls tend to 'fluff up" making it travel a little slower through the air.
For players that depend on their foot speed over any big weapons (take Lleyton Hewitt tonight v Andy Roddick on right now. Big power game vs a scrambler) this trait generally makes their games last longer, particularly when serving thus producing more games that will reach deuce.
If ur book offers the prop:
"Deuce? X set game Y"
YES
NO
Then taking the Yes option can be quite profitable. The 'YES' prop will generally pay anywhere between +200 to plus +400.
Picking one's spot here can be quite profitable when one consider they would need hit only around 35% to turn a profit...
Anyway, hope this info helps guys. Now lets win some wagers