Arent pairings nowadays random between players with the same victory points? Winning by 1 point or winning 100-0 ony change your standing not the pairings you will get.
Your perfect 200-0 bye still might not help even if you take it though?
Taking a bye just means you're MUCH more likely to be matched against really good players in round two because they all spent their bye as well. If you lose with good MoV in round 1, you end up down among the mid-to-low-table people and your round 2 match is way easier. You might, say, go lose 13 points to your opponent's 12 at time (for the best possible loss ever) giving an MoV of 87 then clean up 200-0 in round 2 for a total of 287, but if you'd spent a 200 point bye, then lose 0-200 in round 2, get only 200 MoV points, not 287. The bye would have been a penalty in that hypothetical case.
There are ALWAYS potential problems with taking a bye. You can ALWAYS have made the wrong decision.
150 MoV for a guaranteed win against a field including all of your scariest opponents is a good prize IMO.
I wouldn't use it if I had it, personally, because I've paid a fairly steep price to play a lot of games of x-wing, why would I skip one?
I never said otherwise. But... in round 2, there will be a whole bunch of people who spent byes for round 1, who have a win. The field of round 2 winners will be on average probably stronger than the overall field in the competition, because it includes all the people who've been good enough to receive regional byes. Accordingly, you're much more likely to face a strong opponent in round 2 with a win.
The MoV doesn't affect your standings at all until the cut. The point about MoV is that even with a bye giving a 200-0 MoV, it's still possible for your MoV to be worse after two rounds with a bye than without it.