I personally know a lot of current residents who had a 89 (not that this is low at all, but sub-90) on part 1 that have gotten in either the first time applying or after a year of internship.
Every single of these guys are solid/strong residents.
Although these dudes had a 89, but they made up in other credentials either ample externships, top class rankings, or has kicked @ss during their internships.
Now, when you say "low part 1 scores", do you mean low 80s? I do have an example that low 80s part 1 will keep you out the first time applying no matter how much extracurriculars you had or how great your class ranking is:
A 2004 Nova graduate in top 10% of his graduating class, extremely involved in leadership roles, and had done three solid externships, but he only had a 84 on Part 1! Not sure how many interviews he had earned, but did not match the first time around. He was one of those guys that were OMFS right from the get-go and everyone knew. Luckily for him, our Nova OMFS Chairman hooked him up with an one-year internship where I assumed he did well. He is now where he did his internship.
Now if any of you have a 88s or 89s, I believe with a solid "padding" of your CV (ie, great class ranking, solid externships at great programs, and get involved in leadership or research responsibilities), then you will have a chance (assuming that you have the personality). Those of you with 88s or 89s and nothing on your CV, I would go straight to applying for an one-year internship and work your @ss off.
Back to next Anesthesia case.....