I actually have my IC still all running to the RH/PS side. The changes I had made to the IC were to redirect the outlets better than they were when pointing to the same side. It cost me $50 for the TIG to have that done.

If I had it to do over, I would have upsized the IC fittings to 1-7/8" even 2", as I will now need to spend the same $50 again.

I do not know if I would route to the DS side or not. If one is to make custom IC piping to begin with, it can all be readily handled on the PS and around the aircan. I think I would still go this way, and leave the space on the DS open for other things. (For one, the HL washer tank takes up a chunk of that space to begin with.) If one is after deeps woods type of wheeling, that could be a good place for other things like OBA and OBW.