Thanks for the resposes,
What is considered a bad gouge? I just took a look at my board and I have one gouge that is 2 inches long, half inch wide and gradually gets deeper into my base to about 1-2 cm deep. Another gouge is fairly superficial but it literally goes the length of my board
You sure on that 1-2 cm depth?!? That's likely thicker than the board itself!
If it's deep enough that it concerns you, ptex it. It costs almost nothing and doesn't take that long. The superficial gouge is nothing to worry about, no matter how long.
Here's some gouges I had earlier this year. The one in the centre is the only one worth filling with ptex. The others are just waxed over...
And after ptexing and waxing...