I am working on a cherry window bench that is 24' long. Cherry is a fairly new wood for me (at least this extensive a use of it). I was wondering how much cherry color changes over time. I know it darkens considerably but what I mean is that there is quite a bit of color variation in the lumber I have. Over time does the cherry become closer in color or do the differences become more apparent? I also understand the differences between heart and sapwood but what I'm talking about are variances in the heartwood color.