The only bangors I know are BANGOR SKEETS

In any case, wear whatever you'd like, although I will personally smile if I see a four-in-hand. If you find your tie reaches below your belt, consider the double-FIH or the Bertie knot. Mark of The Armoury demonstrates these techniques here:

https://www.youtube.com/watch?v=mtfExDMRtPc (18/19)