Hi Matt,
Very nice images, well done.
Firstly seeing is king when it comes to planetary imaging, its very hard to fight the seeing.
This may be of help:
http://www.damianpeach.com/images/ar...02011%20AN.pdf
1-2 minutes of frame for Jupiter is generally considered the max as far as i am aware.
There is planetary de-rotation software out there now (WinJupos) which improves images. see improvements made on D Peach's work here
http://www.damianpeach.com/barbados10rw.htm
With Mars approaching opposition its a good time to start pointing and shooting over in his direction. i believe with Mars you can shoot for 4-5 minutes and Saturn 2 and half to 3 minutes.
Jupiter is presently low in the north which obscures the view a great deal. We are set for a good year with Saturn and Mars is already showing good detail and will continue improving till April.
Best of luck
Rusty