IMO a bypass is the way to go on a gas or alky setup no matter, no matter what the fuel is there.
I'll explain it a bit further, I'd always dead headed everything went to alky and belt drive where a bypass is a must, but I still used electric pump for my nitrous fuel side. In order to get the fuel pressure to not drop down to 0 for a moment and come back up I set it up with a bypass setup, when fuel kicks on never goes below 7 lbs now, the fuel is always there when its needed. Hope this helps.