Looks off, it shows that me (exiting at 280ish right now) under a 170 is high end of advanced with 600-1500 jumps. But i dont have that many jumps....
Joking aside, you want to add currency, jumps in last 12 month.
I could add IQ slider as well :) Each person and case is different and there is no perfect calculator and there is no need for one. To make final decision there are instructors and guys with more experience than you to talk to. Someone learns faster than others, someone slower. Somebody can make 500 jumps in 2 years, someone in 10. There are so many canopy designs available now. Some dropzones have obstacles, rivers and wood near, some are based in desert. So I can end up with more than 10 and more different variables that you need to consider before choosing canopy size. As it states under the calculator - it is informational only. When choosing canopy, you must also take into account other important factors like canopy design, jumps last year, etc. There are also good resources under calculator on how to choose your next canopy.
Calculator is good starting point or nice tool if you're an expert and want to see how adding a digital camera of 1kg will affect your wing load on your 79ft2 canopy.
Alongside already known "Wing Loading Calculator" I'm launching an update soon and brand new tools for skydiving community on PureSkydive. Looking for beta testers, PM me if you would like to get an invite!