What you say Hoodat makes sense to me. Weaker currency = lower trade deficit all other things being equal. Expat Panama’s post showing a lack of correlation between currency and trade ignores the “other factors” it seems to me. We’ve had a steadily growing trade deficit over time with fluctuations in our currencies value.
OK, other 'factors' (which will not be named) aside, we'll have to at least accept the fact that there's no corrrelation.