I am a victim of the same boat, L8.5, R8, W6, S8 CRS 408, I was expecting at least 7 to make it to 462, because this was my third try and previously I achieved 6.5.In the dilemma, whether I should try IELTS once more or wait for another 3 months to get the CRS fall down.
Lost the score 473 just by losing .5 in writing. Many would be here in the same boat I believe.
Current score 417
L-9, R-9, W-6.5, S-7
I am failed to improve by any means. I am going to give my hard work a chance to prove my luck wrong and wait for the score to gradually reduce. Since your CRS 417 is already achieved in the last draw. I think you should wait.