I currently have a Katana 50 and as I was looking to jam along to some backing tracks I was looking to buy a Looper pedal. The issue here is that the Katana doesn't have an effects loop. That being the case I was going to upgrade to the Katana 100 as it does but I'm wondering if I should just buy a Positive Grid Spark instead. Any thoughts on the pros and cons of either here? Off the bat I'm thinking the Grid would be less expensive than the Katana and a Looper pedal and I would also be able to play along with actual backing tracks rather having to come up with my own tracks.