03XX is 30% or better greater than the plug. With the unprecidented choices we've seen you will likely have more "smash" than you think WRT picking. Of course from time to time entire classes only get one offering, so the plug and the "most senior" are the same. With that number in most cases these days, you should at least be able to avoid what you want the least and possibly get something even better. Not everyone wants what you want anyway, so your 30+% could really be closer to 50% as some senior people will bid things you don't want anyway.

Edit: LOL just read the 03XX. I initially thought it was 30XX. You very well may be the plug but much of what I said above stands. There have been TONS of small batch options lately. You very well may get something better than your worst case. Also there likely will be some new categories soon (SEA possibly BOS 320 most likely as well as SLC 330 although I suspect that one will "go senior" for a year or two). Also a new 220 base is possible in your first year.