I like the remote fuelers....I use blue line for the exhaust (flame), and
pink for the (pink) color of the fuel I use. Unlike the fuel dots, the remote
fuelers cut off the flow of fuel to the carb when fueling, and eliminates flooding.

If you can't get to the fuel line, like in certain inverted installations....the remote
is the only way to go. I usually give the fueler fitting on the plane a little squirt
of fuel to remove any unseen dirt or dust build-up, before I shove the line into
the fitting....dirt getting in there will cut short the life of the fitting.

The exception is on YS engines, where fuel dots are used....but they have the
one way check valve.

FBD.