imported files are compiled separately, while included files are compiled like one big file. There are several diferences when dealing with several files in the same application using import and include.
The first one is that imported files doesn't share globals and types with the file they are being imported to, while this is possible on included files. Imported files are also compiled separatelly, that improves compilation time sometimes and that files can be safely shared across several programs.
In general therms I would recommend you to use include untill you're more familiar with BlitzMax.
the file size of the resultant executable should be very similar (if not the same) when using imports or includes to add files to your program or application.
The first one is that imported files doesn't share globals and types with the file they are being imported to, while this is possible on included files. Imported files are also compiled separatelly, that improves compilation time sometimes and that files can be safely shared across several programs.
In general therms I would recommend you to use include untill you're more familiar with BlitzMax.
the file size of the resultant executable should be very similar (if not the same) when using imports or includes to add files to your program or application.