The Quadrantal Rule is typically British and only to be found here and in remnants of the Empire! In most cases it is impractical, and I believe most PPLs fly below 3000 feet so they do not have to set 1013 and fly quadrantals. The concept of a 3000 transition altitude and 3 different altimeter settings in proximity to the ground is sheer nonsense and possibly contributes to CFIT but, try telling the bureaucrats that. we've always done it, so it must be right,