Changing FF number from QF to AA in the lounge

I'm will leave LAX in a few hours for my Platinum challenge flight and want to ensure that I have successfully changed the FF number from QF to my AA number in the lounge at LAX. I read the thread about AA challenges where it says to confirm the change of FF number using www.checkmytrip.com.
My boarding pass now says AAxxxxxx with the correct number but checkmytrip still says
Traveler: MICHAEL MR XXXXXX
Frequent Flyer: Qantas Airways - QFxxxxxx
with my QF FF number.

Should this update immediately? If not, is there somewhere else I can check?
Thanks

 

Thanks Yada Yada. That's how I did it. When I arrived in LAX, went straight to the lounge and picked up my boarding pass. Then I went back to the desk and asked them to remove my QF number and put in the AA number.. So now I have a new boarding pass with my AA number on it in the format AAxxxxxx.
But it seems checkmytrip has not been updated. So I'm wondering whether it's real time or not..

 

I'm slowly sorting myself out here.. I got sick of trying to talk to the people here in LAX in the lounge and not getting anywhere.
So I called FF centre in Aus.. The first person I spoke to deleted the QF number and put in my AA number. I had a look in checkmytrip and it had the wrong entry as described by Dave Noble.
Traveler: MR MY NAME
Frequent Flyer: American Airlines - AAxxxxxx

So I called them back and asked them to delete the number and reenter it.. The person I spoke to said it was still coming up the same.. So I told them what the entry should look like and he did as I asked (wondering why I was asking him to do it this way) - put in QF in the airline field and my AA number in the FF number field.
I had another look at checkmytrip and it finally looks correct.
At the top of the list of flights I have
Traveler: MR MY NAME
Frequent Flyer: Qantas Airways - AAxxxxxx

I can only hope it all posts as I want.. Time will tell.. What a mess!

 

That's my understanding from reading the AA platinum challenge thread.

 

In future it won't.. However, this time I hadn't decided to switch to AA yet so it was originally booked with my QF number..

It all looks good so far. The LAX-SYD flight didn't post to QF so it looks like it will go to AA.

It still surprises me how little QF reps know about their own systems..

 

I hope they do after all the bl**dy hassle to get my AA FF entered correctly .. I haven't seen my phone bill from the 2 lengthy calls I had to make on my calling card to QFF desk in Aus from the AA Flagship Lounge to get the numbers all sorted.

I can only thank Dave Noble again for the excellent AA Platinum Challenge - Tips thread.. Especially the part about how to check that the FF number is entered correctly.