Unfortunately I have been declined appointments based on my # of OKs (>100, but way less than 500) on P411, twice in fact by two local Denver ladies. Each time they mentioned they were uncomfortable with the number, not my profile. I chalked it up as "different strokes for different folks", then moved on and made an appointment with a lady who was comfortable with seeing me!
I'd rather have that happen before, than have a crappy session and wonder WTF, at least she's honest with you beforehand. I think that is testimony to the system working!
Btw, I am still taking applications for my next "OK" submitters!