@Dale_Dunn That should help negotiating the curve…
Almost exactly what I was thinking of. Maybe guide where the tube enters the extruder too.
Not necessary according to @shauki , but I would be interested to hear test results. Maybe it can be better than good enough.
As a bonus, you could also use the loop to hang the extruder above a delta for a short bowden (no bend between the extruder and the hot-end, so almost like a direct extruder), with very little effect on delta end inertia.