Hi Mark

Heres my opinion. We all know a UAT will work in any orientation because that’s what happens when we fly. The advantage of putting it at 45 is that is purges the air when fuelling. The only other thing to consider is that a vertical half empty UAT will draw air when even a Supersport is at full power so your P-200 has no chance and I guess that restriction in the fuel system will only make this situation worse. A half empty horizontal UAT will not draw air. Of course if you have no air in the UAT there’s no problem.. The big nipple UAT I made really works well especially as none of the fittings, tube or clunk are less that 4mm I.D.

Jason