I fitted a few of the 2hp modules back into my Arturia rack, but realized that the Arp has gone crazy over its time in the box. It does not respond to the modes knob anymore, but still provides some funny arpeggios. I used it with the Twin Waves VCO from Klavis and mixed its three voices (well, 2 and a sub octave) with the Waver from Bastl. Out came a pretty solid, 90 second modular arpeggio, topped with nice bass and saturation.