I have a pretty short chain, but everything down the line stereos the signal up pretty nicely on its own. A Deco, a Serpah, a Timeline and an ASR1.
The Fromel Serpah (a DimD/DC-2 clone) does a nice subtle stereo widening thing. The independent controls let you dial down the modulation too, if you want that widening without so much chorus on top. It’s a nice addition to the standard DC-2 presets. Plus, it’s got plenty of headroom. Great for synths. Love that pedal.
It’s a similar effect to what the Deco does in its chorus range, just the Deco does it in more up front, less affected way. I like them both for the task, but the Deco just sort of gets you there in a direct, no fuss way, which is nice. Plus, if you run it in it’s wide stereo mode, you’re just there. For a real-time, push-a-button now you’re double tracking FX, it’s great.
I’ve been so enamored with turning knobs and just listening to the Prophet 5 so far, that I haven’t even thought to record the damn thing yet, haha. Gotta try legit hard-pan double tracking it though. The idea of adjusting the vintage knob slightly between tracks sounds like it would yield some great results.