I noticed my metal bowl was leaking today after I had put it back on last night in frustration of the clear bowl not fitting. I'm not sure if it wasn't tightened onto the filter good enough, or if I didn't oil the gasket well. So I dumped it, and took the bowl off. Threaded the filter on and then with the drain on the clear bowl threaded up so it was up as high as it could go, I threaded it on as well. I completely expected an awful cranking/purging session, but I literally jumped the solenoid, It fired up, and within a second or two, the clear bowl was full. The truck didnt miss a beat, ran plain as day. All the air purged out on its own just fine, and this is with a mechanical pump. I was impressed.
One thing that concerns me though. I worry about getting the clear bowl off when the time comes to change the filter. That is usually a task when I had the metal bowl, and am not sure how easy the bowl will unthread from the filter to get everything removed.