I posted this as someone might have had anyone in their zone who has done it.....but seems noone has.....you are right ....it's a risk.....to be honest I am not getting that internal feeling to go without spouse to complicate things more....but my sep b'day point degrade is freaking me out....I can compensate that with my spouse WES ECA but again that will take another 2 months.....I should not have modified my may 25 th Profile as the cutoff seems to be around that time at 458 in next draw.
I don’t think your question about if tiebreaker rule still applies post ITA can be answered here. Maybe try post ITA threads.
And nobody here can decide for you. If you have decided to take the risk then get prepared for whatever the result might be, e.g. not being allowed to change to spouse accompanying post ITA or changed but got refusal after a couple of weeks due to the tiebreaker, etc.. You might get it, you might not. You might even end up with nothing or paying a high price for doing so.
I’m also sitting at 458 with spouse and if I change my profile to spouse not accompanying I will be at 470+, but personally I would not play with the rules as I fear the risk can be too high that I cannot afford. However that is my personal risk appetite and other people may have a higher willingness in taking risks for higher payback.