The sooner that UK airfields go over to USA style 45 degree joins onto the beginning of downwind, the safer we'll all be. There's no need for overhead joins to view the windsock, followed by descents on the dead side. Mostly there are plenty of clues as to wind direction, including a comparison of GPS groundspeed with IAS on finals to tell if you have the desired headwind component. Even at non-radio airfields using SafetyCom only, all it takes is to announce your intentions and coordinate with other traffic verbally.