Our band’s guitarist got into using pedals with effects loops and we’ve used different routing setups for many of our songs, especially the ones we recorded back in 2019. Here’s two of them; I’ll write the signal chains and italicize the FX loops.
On this one, we used a Telecaster and ran into an EHX Attack Decay > DOD Ruberneck + Boss MO-2 + TC Electronic T2, EHX Superego+
In a more subtle application, this one only involves a Telecaster into a Boss BD-2 > DOD Rubberneck + DOD Boneshaker
Both of the above pieces used the Rubberneck’s effects loop to bring in repeated notes that are different from the initial pluck/hit. If memory serves, there might be a few pieces where use the fx loops on the Superego+ or the Attack Decay but I’d have to check my notes to confirm. Ultimately the beauty of an effects loop is that you can break with the linearity of a serial chain.