Question regarding map scaling

[jharp]

I have a map where each square is 15px and it represents 50 ft. The recommendation is 50px-100px per 5 ft or 10 ft length.

So normally I would keep the image below 4k and scale in FG until I get a suitable grid size. However, it seems to me that processing / memory wise this should be negligible difference then if I scale and clean the image before and use an image that is greater than 4k.

Anyone have any advice? Should I break the 4k image size or break the recommended length or what.

Edit - Seems scaling in FG is not as memory intensive as I thought. Question answered.

Thanks,
Jason

[damned]

If its an outdoor map using larger scales seems a reasonable compromise.