im not interfering or anything but ive tried every different method with rounderbout over the years ive had pigeons ...i no its everyone to there own..but this is what worked best for me...most wins that season that is,,,, pair back up 5 weeks before the first race..my 1st race is 18th april..same as is ...so pair back on the 14th march..so by the 26th march should have both eggs...thats 12 days...give and take a couple....let them sit 10 days ...5th april..take hens away ..get them on a 50/50...race mix/ barly...3/4 oz to 1 oz...so they dont start nodding at each other...let the cocks sit a further 3 days then they should get fed up and leave them..this should be 8th april..give and take a day.....take nest bowls out and PLASTIC EGGS...you are now on rounderbout....that gives you 10 days to let them out twice a day and practice whats going on...plus have a dummy race a week before your first race,,,,,,...hope this helps...it works for me but it might not for others....all the best mark....KEEP IT SIMPLE................ :)