I have been fallowing along because currently on my 2021 Verve 2 Disk, I’m running a pair of Bontrager Commuter Paniers with a Bontrager MIK Rack Bag on the back rack and no front rack. The setup works ok with this bike for CC touring, but the Paniers definitely are not large enough for an extended bikepacking tour.
I am purchasing a Trek 520 Grando, which I should have in my possession in a couple of weeks (it’s at the LBS just waiting for me to pay off the lay-a-way). The Grando has only a front rack, and I’m debating if I should also get the MIK rear rack, or are front Paniers enough?