After checking this thread carefully it looks like the early qualifying flights can happen as late as October 23rd, assuming the miles post in 3 days as usual. The reason I am looking for additional reassurance is that I will be sitting at 98400 miles on October 16th and it would make sense to MR my way into early SE the following weekend.

So, has anyone ever been denied early recognition with flights taken and posted within this grace period (Oct 16 to Oct 30)?

Thanks!