The point of discussing wht the actual percentiles wud be on the basis of mcat scores is not to feel comfortable abt ur chances. The idea is tht it wud give u a fair idea of wht u can expect and make better choices in terms of applying to instis. for instance if u come in the top 500 consistently u really need not apply to any of the low rung instis and waste money. similiarly if u r in the 1000+ range u shud seriously consider applying to instis like Tapmi,IMT etc..if ur very keen on joiing an insti this year itself. 2000+ rankers .. shudnt be hedging their bets on IIMs,MDI,NITIE etc .. (This is an assumption, interested ppl can chk the veracity of this by going thru last year's mcat thrds and chking out ranks of pgites who got thru differetn instis last yr) apart frm tht dont read too much into all these analysis, It just shows wht can be achieved.What is ultimately achieved wud depend on ur composure, and confidence @ the real CAT and this has a huuuuuge impact.
@shrikanth..this is completely armchair analysis..but i thnk fairly accurate (dont ask me why)(im in complete agreement with DG).

..my best rank was 23,worst 640(real bad day), average abt 150( i hv seen a few 80/100s, some 200s and a coupla 300/400s), and on an average i believe im in the 99+%tile range...i ended up with 99.61...make ur own conclusions.
andy.