With that mind set I would definitely recommend staying in touch with the Middlebury swim coach
where your times would be in the mix
The other thing you need to consider is that the top NESCAC schools are very difficult to get into without going ED and /or without the coaches support
So if you wait to hear about acceptances at the Ivys you will be in the RD pool of students at the LACs and your chance of getting in is diminished
Many of the NESAC schools fill up 40 percent of their freshman class via ED as their coaches need to fill spots
Keep that in mind when deciding