On the Tucano (where we fly oval ccts) there are 2 techniques adopted.
1. We choose a 300'pt 1nm on the extended centre line.
2. Once abeam the 300'pt on the d/wind leg we fly a descending turn with the aim to be rolling out on r/w hdg at 300', set up nicely for a 3 deg glidepath. For this turn we use power to ctrl the ROD and vary the attitude to maintain a constant airspeed.
3. Once aligned with the r/w we then use attitude to ctrl the flightpath and power to ctrl airspeed (ie slowly reducing to Vth)