It's really just about carving out the lows from the guitars to make room for the kick and bass. The reason it's "djent" and not "djchunk" is because you push the mids and highs but cut the lows while playing in a low tuning. If you don't cut enough bass from the guitars, it sounds too chunky, too blown out, and not really spanky.
Also, when recording, use less distortion than you'd use live, but multi-track the guitars. If it's a rhythm part, quad track it and pan one each hard left and right, and one each a little bit closer to center. If you don't have time to quad track, you can mimic it pretty well with a doubler plug in or pedal. That's the key to fatness without flub.
There are lots of producers and artists that post mix walkthroughs of prog metal and related sub-genres on YouTube.
Thanks, I appreciate the advice! We definitely have been quad tracking, but will try using less distortion and cutting the lows. I'll also hit youtube and see what info I can find there.
Those strings are super loose, but they sound amazing, punchy and clear and I'm not alone on this, even Nolly stated in an FAQ hosted by Dingwall (I think?) during the pandemic that he doesn't go heavier than a .130 when recording, regardless of the tuning. I'll need to do a video about this soon 

