Math assuming the dogs all pass the first series in junior and senior and the first two series in master
Junior 50 entries = 100 live ducks, 4 retrieves x 50 dogs= 200 retrieves
Senior 50 entries = 100 live ducks, 6 retrieves x 50 dogs = 300 retrieves
Master 50 entries = 100 live ducks, 13 retrieves x 50 dogs= 650 retrieves
junior
Option 1: shoot 1 bird to start test then run test dog, rebird after dog2, 4, 8,16,32 Some birds have been retrieved 6 times by end of 1st series 7 times by end of test if a flyer is shot in both series.
Option 2: kill 50 birds send out to dead station, shoot live flyer at other station. No rebird requireed Each bird retrieved once in first series and 2nd time in second series.
Option 3 Start with 6 frozen/thawed birds rebird at dog 5,10,20,40 Some birds reused 5 times by end of 1st series and 6 by end of test.
Senior
Option 1: Kill 2 birds to start test, rebird at dog 1,2,4,7,11,17,26,39 Some birds used 9 times by end of 1st series, 11 times by end of test.
Option 2: kill 50 at start of test and shoot flyer, rebird at 25 birds used 1-2 times by end of 1st series, used 1-2 more times in second series. birds used 3-4 times by end of test.
Option 3: start with 6 frozen/thawed Shoot flyer, rebird at 3,7,14,24,39 Some birds used 6 times by end of 1st, 8 times by end of second
Option 4: Use 6 frozen/thawed on blinds only, rebird dead station at 1,2,4,8,17,35 Some birds used 7 times in 1st series, Thawed/frozen used 8 times on blinds only.
Master well expect to see birds used a huge number of times.....