Not really getting the LECOM hate, and their entrance stats are literally the middle of the road average DO matriculant stats, so I wouldn't really call them "on the low side", but whatever.
I'm a little confused about the point of a throwaway. You doing it just to submit the app on time? If that's the case, you don't need a throwaway, you just need a school that you're planning to apply to that won't reject you with an MCAT score pending. Half the schools would wait for the score and the other half won't.
Its been too long since I applied to know which ones do that now, but back when I applied, I remember the Midwesterns, LECOM, ACOM, and WVSOM waiting on my MCAT or pending semester grades before deciding. The Westerns, ATSUs, and I want to say the Touros did not (rejected or offered interview right away). Now remember this was like 4 yrs ago, so look at recent posts to be sure.