Thought I would post a picture of what correctly spooled line should look like on a reel.
You should see even spread of the line across the spool, no major uneven patches or bumpy looking line.
Should look the same way on a spinning reel as well, make sure to take the time so it is done correctly. A good solid knot on the spool with tightly spooled line for a solid foundation.
In the end badly spooled line will cause various issues and could result in losing a really good fish.