So..... if you use import, it's up to you to compile ahead of time any changes because import does pre-compile. Right?
No, the imported code will be recompiled by BMK if it has changed (source timestamp later than object timestamp*).This is only relevant for normal code if 'QuickBuild' is enabled, otherwise the imported code will *always* be recompiled before being linked.
*This is determined differently if you're using the speed-up hack, I believe.