Talk:Game Development Based on Experience/1.4.3/@comment-71.8.194.93-20130503201757/@comment-8961248-20130503210117

An important point that is not put forth in this page, is that T/D ratio only matter if T+D > 30

If not you will get no bonus nor penalty

So T/D ratio doesn't matter for your 9/16 as 9+16=25<30, which explains your results :)