I also have an Innova, but hand-guided. Your bobbin issues...one problem is the thread - very linty - so much happier with Bottom Line from Superior (I use both the prewound and wind my own) in the bobbin and Sew Fine on top. Every time I change my bobbin, I do check my tension. I use a TOWA gauge to adjust my bobbin tension, then play with little loops on a muslin sandwich to check my tension on top and make any adjustments necessary to have perfect tension. I have done some custom quilting on a quilt using my friend's machine and IQ (love it, BTW) and find that the lining up of the rows is really important (especially since I was fitting it into a heart shape!). Practice lots and do call Michael if you get stuck - he knows these machines so very well!!! And what is the use of having free 24/7 tech support if you don't call them!!! Enjoy your new best friend!!!!! You can also join the Innova group that has the computerized system - they would be a great source of information!