Of course, this could just be a result of the grid light image being a fraction larger than the grid object, but this is where numbers would definitely help, as the lack of a real-time preview makes tweaking a nightmare.

I'm running Win 10 Pro 32GB RAM Intel Core i7-4790K CPU @ 4.00GHz Nvidia GeForce GTX 1660 Ti

My DA Gallery: glen85.deviantart.com/gallery

Peace, love and polygons!