Rd2rk thank you so much.
I’ve been struggling with this as well. I’ve just bought my first ever amp and made sure it had an effects loop so I could use the 4 cable method. But couldn’t find a way to utilise the Pod Hd500x’s preamps.
I was getting killer tone out of the preamp on my new Boss Nextone, but the whole reason for having a pod in the first place was the versatility of the additional amp models.
You’re a legend.