Look dental 100,
I'll tell you what I did, and you do the math.....I was in your shoes back in 2006, I was very busy doing a lot of stuff, and I didnt prepare well for my pt 1, and I scored 82....at that point, I asked my self the same question, and I decided I'll go on and take pt 2, and if I got a good score, then it might give me a better chance and if not, then I was doomed anyways...
To cut the story short.....I got 82 in pt 2 last year, and I applied for 8 schools...........6 of them accepted me for interviews.........I went to 3 of them.........and got accepted by 2...........and of course I picked 1...........
The bottom line is I made my choice that I thought was better for me, and I'm happy with it.......Make yours..(",).......and dont regret it...
And never forget that they look at you as a whole package......NOT ONLY your scores.