High Volume Oil Pump?

I have a 360 with a high volume oil pump. While it was running I pulled the dipstick and there was nothing very little on the stick. It's a fresh oil change with 5 quarts of Rotella T 15W40 and a K&N oil filter and a stock oil pan with a windage tray. Would it hurt to add, say a half quart of oil?

Thanks...Eric