Thats loose Kaisa table.It does add up a lot in the long run, even if its just that 2ft difference. Especially with the average bar box having more forgiving pockets than 9ft tables.
I have a similar habit of practicing on Kaisa tables sometimes before pool matches. Kaisa = game played on super tight tables in Finland:
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Our tables are like this.. Angle i took look to be more straight down but still..
You actually have Kaisa tables in China?
Billiard lovers Finland published one of my runs i made one morning.
That pic is from that table.
I gave those to them because guy loves Kaisa. I made 6x over 60 points in one inning same morning. Longest one was 93. If one run 60p from start in official tournament, there is 500€ bonus prize.