In addition to the TRS insert cables, I suggest using a midi cable from A4 to ND, as A4 sends midi program change. It’s quite nice to be able to have a Nord Drum program automatically switch when your A4 changes patterns.

I use the CV track to sequence all 4 triggers, thanks to p-locks. You can sequence all 4 triggers on each step of the CV track this way. You get real good at copy/paste of trigs doing it this way too.
And this leaves the FX track open for FX p-locks.

I just spent a little more time with my A4 and ND1. Layering the big bass of an A4 kick with that nice hard knock of the Nord Drum brings great results.

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