Believe me or not - VDB needs planning.

In the last 2 years, I have VDBed 4 times (2 per year). 3 of them was planned ahead and 1 unexpected.

I will not say you don't have a chance or not - and quite honest, except knowing you will go through CLE, no other information is available.

So I assume that you are certain that the flight will result VDBs.

In this case, I will plan ahead for my alternative (strange enough, as VDB is voluntary, GAs still treat it as involuntary change as a trip-in-vein).

In most of the cases, the GA will general accommodate you based on availability.

That's why it is good to plan - so that you know what to expect.

For a question to yes or no for VDB - ask yourself - is the segment (or EQM) important or that voucher is more important?