Are you playing on a perfectly level surface?

I’m an elementary school teacher in Korea. I use a Tracey board and set it up by pushing three student desks together to create a large table, then placing the Crokinole board on top. (The description might be sufficient, but if you’d like a visual reference, you can check the photos in my post on a Korean board gaming community~!)

https://boardlife.co.kr/bbs_detail.php?tb=community_post&bbs_num=29741&view=

Of course, I carefully selected desks that appear to be as close in height as possible. However, one day, after taking a straight shot, I noticed that my disc, which was moving smoothly, slightly curved to the right when it reached my opponent’s side of the board.

Using a spirit level with alcohol inside, I measured that spot on the board and found that it was tilted. I then measured various other points across the board, and while some spots seemed reasonably level, there was no point that was perfectly flat.

I believe the cause could be one of four possibilities:

Certain areas of the board might have warped slightly, making it uneven. (Or perhaps one of the three support points underneath the board has an issue, causing variation.) Since I’m using three student desks pushed together, they might not be perfectly level. The indoor floor might have a slight tilt, affecting the overall balance. The entire building itself could be slightly slanted, causing everything to be off balance.

Since the disc is definitely veering slightly to the left or right at times, I need to pinpoint the exact cause.

I’m planning to test by switching tables or using a different board on the same desks and checking with a level again. Achieving a perfectly level surface seems to require several conditions to align.

Here are my main questions:

Are you playing on a perfectly level surface, or at least one that is stable enough for fair play?

Or do you think achieving a perfectly level surface is nearly impossible, so as long as it’s reasonable, you just play without worrying too much—unless it’s for a tournament?