Novation have increased the sample time on the Circuit Tracks to 196.6 seconds from 60 seconds in the 1.1.5 firmware update.
I wanted to see what I could do so I chopped up the drum and bass tracks from the Block Two Self track and imported them on to the Circuit Tracks in a new pack. Once on the Tracks I arranged them into an 8 bar loop to play with across multiple projects. Then used the two synth tracks and created a new sound I liked and then once I had the sounds I could happily jam with them. It seems to work well and I'm going to try and move some projects over. Below you can hear a quick jam with the projects.
The original video for Block Two Self is below.