Borbet A - Radiused Or Tapered Nuts?

Having fitted them using Tapered nuts someone I met over the weekend said "Oh! I used Radiused Nuts, thats what you should be using!" Am I going mad or am I wrong? I know a few of you have fitted A's, so what did you use? Cheers!

Oh! Cheers Steve! What implications will the tapered nuts have? Will they eat into the wheels?

Right I better get an order in to Mr B then!  Thanks for your help mate

Edited by T3surf