This will likely be the final incarnation of my Little Effects Box. Got rid of the 903A and put in a 2hp VCA and a Meng Qi DPLPG instead. The DPLPG is very nice, especially for modulation purpose. For now I'm quite happy with what I can achieve with this little system but also encountered some limitations in functionality and ergonomics.
Thanks again to everybody who contributed to this thread. I learned a lot and might as well buy a bigger case in the near future ;-)