IMO, if there's more pieces (lines, pump, tank, etc.), it's more complicated and more things to go wrong. I thought about dry sumping my FE, but the dizzying array of extra parts changed my mind. When I see extra
oil lines and connections, I see potential future leaks and leaks in general drive me nuts.
Also, with an
oil cooler, the
oil takes a long time to heat up. I can't imagine how long it would take to get the oil over in a separate oil tank to heat up, unless they make some sort of oil heater to go along with it.