I have a standby similar to yours, but the online time you claim to have for several hours (even if you are only online without doing anything) is what I find difficult to believe. That is why I ask you to give us a screenshot from batterygraph, but the first curve before you enabled smartreflex is not as flat as it should be to achieve more than 24hrs of online time, and again, that is what you claim to have.

My batterygraph shows "a very more flat curve than yours" and my N900 don't achieve more than 24hrs even of intermediate usage. The maximum I can achieve is 17hrs of intermediate usage, with 2 or 3 hours of online time and light IM over wifi, like 1hr of browsing time full over wifi, and some web checking during the day over wifi/2.5G, a few calls like 1hr tops, 5 pictures tops, some note taking, some spreadsheet, some appointments managing, like 50 sms tops, and very little music playing. With all that, 17hrs is like heaven to me.

PD: I have the titan's custom kernel with the Starving setting and smartreflex enabled on VDD1 only because enabling it for VDD2 is unstable for me.