The manual says that ds grids can be memory intensive, but it doesn't say at what point this occurs. For example, I will have a grid in my game that'll be around 11 spaces wide and at least 30 spaces tall (probably no more than 60 tall). It's in a persistent object so it's always available, but it's also always running. Is this too memory-intensive? If it is, what are my other options for storing this data?