Creating a stockinette knit pattern

Hi, I have working on a definition in order to create a stockinette knit pattern, which is dynamic and allows you to control the amount rows in the knit. I have manged to get the pattern to repeat along the x axis, in order to define the length of the pattern, however I can not get it to work on the y axis. I have used series in order to copy the pattern and this has worked well for the x axis. When applied to the y axis, if the "row slider" is above 2, the pattern copies along the y axis, howver is not symmetrical and is staggered.

I have attached the grasshopper script and put a panel showing and explaining the problem slider.

If anyone could help it would be greatly appreciated.

Thanks