The only downside to that strategy is you can't e.g. show a single y-axis with values for each chart when you hover over one the way cubism can. This is really handy for comparing values across series. Actually I just found a d3.horizon module which might do what I want, but I need to see if I could get multiple charts to share the same axis.

Maybe I should just go back to cubism but it doesn't really make sense when you don't have thousands of values that you want to be 1px wide.