Allan, it appears that if you pair early, but prevent them from sitting the second round for more than 10 days, then the moult will not start. This is only important for your racers, it doesn't matter with stock. At that time of year they usually lay the 2nd round eggs when the YB's are around 3 weeks old. A lot split them then, or just prior to laying the 2nd round eggs and leave a YB with each parent. If you then re-pair around race time to have them the way you want them for the particular races, they should hold their wing. Just wanted to make sure I wasn't doing anything wrong Robert, that's why I checked.