In the past year, I have learned to experiment. Being a beer nut that loves to try new beer, I seem to change up my base IPA, Pale ale, and nut browns every batch or 2 so as not to completely duplicate these beers everytime. Once I have have a brew that appeals to me, I like to change hop schedules, specialty malts to get different contasts. I think that is one part of homebrewing that I love. It is like sitting at a brew pub and sampling every brew on tap. JMHO