I bought this fantastic amp a week ago.
Yes it is excellent for jamming, with the prerecorded tracks or laying down your own.
Spend the time with it if you have not already done so. It does everything it promises to.
Press the settings button three times, scroll down to the last item on the menu and press the right arrow. This will set the FBV Express to record and play rather than select effects.
Use a 2GB SD card for all your recordings.
Download the Advanced Guide for the Spider Jam, all is revealed!