Henry That’s the one drawback with how these boxes are set up, insert fx would be helpful. I have a few ways of doing things: one is to do what you said, basically solo each channel and record individually (this is my main method); use the fx on the syntakt as a place holder and just add them back in with ableton; do longer jams with a mix of wet and dry and cut them up after.
I’m doing a lot more resampling now, so it doesn’t bother me as much as it used to. Recording each track solo is a bit of a pain, but you get used to it.