Sourdough

I'm happy with my sourdough rye, but my wife would perfer a less dense version, something more deli like.  She also, however, wants not to reduce the rye-ness.

I'm using 1 part Hodgson Mill whole grain rye flour to 2 parts major brand wheat bread flour..  It's at 65 percent hydration.

So what might I do assuming that I don't want to change the rye/wheat proportion?  I figure that proofing schedule, handling, or hydration could be variables worth looking at  But there's also oven temperature and how long the loaf's under cover that might have an effect.