your tension is more dependant on your thread choices- i use alot of batiks- and do not generally have tension problems when quilting- are you using the correct size needle for the thread choice? what tension problem are you having?
i have found i have better stitches when i use a thin-sharp (smaller needle) than a large needle- so i tend to use a 60wt thread
are you using batiks- top & bottom? what kind of batting?
is it a top tension problem (poor stitching on the backing?) or bobbin tension (poor stitching on the top?)
maybe pics would help us help you figure out what is happening...