You'll be amazed how much easier making snak stix is with a 5#er.
I love mine, it keeps the meat cold, 5 lbs is no work at all allowing more room for experimentation, also there is the table or work surface size requirements. 15 pounds just needs more room to stuff, twist and turn. 'Course were you are from you probably do those fancy multi-twists anyway.
That we do,,,,the 15 is great when doing summer sausage and big batches of other sausages because you dont have to relaod so often, but If i only want to do a small batch a 5 is not sucha production.