Meaning ballot #1-#100 confirmed is 95 first timers and 5 2nd timers, #101 onwards it is all mixed...
I thot the ballot mixes all regarding of first/second timers? Meaning that ballot #1-#100 could all be second timers but since there are only 5 units allocated to second timers, only 5 out of the 100 can get the flat. So if #1-#5 reject the selection for whatever reason, #6-#10 will have a chance to get their flat. Once all 5 flats are taken, all the second timers will be removed from queue even though their ballot number is < #100. Then those first timer with > #100 will get to choose. This is the impression I got. Please correct if i am wrong.

i hope at least they announce the result first.. at least we know what are the chances..