If immigrating to Canada is a priority for you, then you should do whatever it takes to increase your score, even if this is just by a few points. A single point can make the different between being selected - or missing the cut off, then waiting a bunch of months for the score to drop, then losing points due to age which then reduces your chances further and ultimately missing your chance of being selected. This has happened to many people here.My score is nowhere this good and never will be unless I do masters or learn a whole new language. It's been 48 hours I'm in the EE pool as an FSW candidate with CRS score 471. I was originally thinking of requesting EOR (to max out writing; from 7 to 7.5), but then I decided not to. Just an hour ago I wrote here why. I'd love to hear your opinion about my assumptions & current position, if you please.
You've made a bunch of assumptions about what is going to happen regarding the draws and scores. No one here can tell you what will happen. However new people enter the pool each day and my guess is that there's a lot more than 11K now in the pool with more points than you.
Ultimately this comes down to priorities. If immigrating is a big priority, increase your score, even if it's just by a few points. If not as much of a priority, then don't bother. It's your call.