I currently have Smokeping pulling the HTTPS for about 20 - 25 of the "top" websites, per the old Alexa rankings. I feel as though I could be doing more. I am more closely wanting to emulate the end-user experience in a repeatable, quantifiable fashion. I'd like to do A/B comparisons as well. When I make X change, how does it change?

If I'm already doing the low-hanging fruit path, then so be it.