Hey folks! I just 'took the plunge,' so to speak and ordered a Sig 16 with no stops held back - integrated & hpa. I'm a wee bit afraid that I'm going to catch the RWA bug, and end up a repeat customer, and as such I've been looking over the other products and it's come to my attention that you can get a Cassabria stuck into quite a few of the components. So, I already did this with my Sig 16. Unfortunately, you can't get a balanced output on the Sig 16's headphone stage, so that right there is one notable difference. I assume that's the big difference between the Cassabria upgrade on the Sig 16 and the Cassabria upgrade on the Bellina. But I'm curious if these Cassabria upgrades are 'real' Cassabrias, or if there's more to the actual standalone Cassabria. I see the standalone Cassabria uses an Alps pot which presumably is there for better channel balance. But is there more to the puzzle than this?