What do you mean for "stereo"? A setup with 2 amplis?
In this case this is what I do:
Ampli A is my main sound. I have all the pedals I need for it on the floor (vol, wha, whammy, KayFuzz) and other pedals (boost, comp, od, etc) are in the rack together with midi units. I have a Korg A3 (it is my main delay unit but I use it even for other effects) and a Pod Pro. Everything is controlled by a midi switcher (GCX) and combinations are called by presets from the midi pedalboard (GCP).
Ampli B is my second ampli. I mainly use it for shimmer and stereo delay with different time from the main delay. There's nothing on the floor but the line B volume pedal. A verbzilla (for shimmer) and a second Korg A3 are in the rack. They're controlled by the GCP/GCX system. I'm planning to put a Looper (memory man with hazarai??) on the floor to use it for songs such as Magnificent (intro).
In a few words... I have 2 lines, each one with its volume pedal at my feets. The line A is for main sounds and the B is for complementary sounds. Each line has its dedicated ampli.
I hope this helps