Currently at /customize/, switching to S1 will direct you to /modify.bml to customize your journal, so I whipped something up that'll put all the S1 stuff in /customize/ instead.
So, if your journal uses S1, instead of seeing "The old style system is configured through the Modify Journal page.", you will see the style select boxes, the color scheme boxes, and the overrides box all at /customize/.
I've already got this working, and have a patch ready to submit with changes to /customize/index.bml, but I'd like to hear what everybody's opinions are about something like this, and any benefits/drawbacks anybody sees in this idea. Thanks.