Sizing of divisions used to fill ordinaries

E.g. azure a chief paly of 9 gules and or (also seen with per bend)

To avoid unsightly joins when creating fancy edges on ordinaries, the oridinaries are usually specificied slightly wider than the field and cropped. This is usually fine, but if the ordinary is filled with a division the edges of that division get clipped. This is unsightly, but fairly minor. Could probably be fixed by using an exactly sized ordinary if it is filled by a division, although this might give you the unsightly joins if a fancy edge is used. You pays your money and takes your choice...