The jetstream is a weird beast. The JS can be right over the top of your place & yet you'll get a great planet capture, & then at other times according to the maps, it will be 200 KM south of you yet the seeing will be a 2/10 with all data recorded for that night deleted in disgust.
That's because there are 3 layers to contend with. The JS itself, mid & lower levels. It all depends on all threes interaction with one another. And then there are all these different types of seeing: Fast seeing/the seeing that involves big slow undulations of a planet/Seeing where the planet moves left & right 50 pixels rythmically - I could write a book on the subject!
If you follow the maps religiously, you'll find yourself staying indoors for the night & basically missing out
The best idea that I've found after 6 years in this planet imaging game is to not let the maps (or predictors) fool you or put you off. Just get out there & pull the trigger every time it's clear & your'e available to do so. Eventually you'll get some nice captures.
To sum up on what I really mean: this Jupiter + Io transit was captured on the 13th July 2010 in fluctuating 1-8/10 seeing. I'd give it an AVERAGE of 4/10 however there was roughly 1000 frames from a total of 5000 frames that was 6-8/10 so I stacked 600 frames to be safe. Also played it smart & dropped back on my FL so this is at F15 rather than my standard F20-25 with the 11" SCT. I took 38 AVI's at my standard F & all of them got deleted after spending a whole day stacking, previewing etc.
There's not too many planet imagers in QLD & there's a reason for that, however If I'm going to be here I intend to make the most of it
Good luck
and I hope this helps
... hope you are settling in Ok in beautiful Queensland. I remember you posting before you came over. 
