Just last week, my partner decided to make some additions to the system we are playing, mainly in competitive auctions. During the course of the weekend at Spring Fours, we found a few more problems and decided to patch this. Otherwise, we have not changed the system since November, but then again, we only play together approximately 1-2 times a month. In my other current fixed partnership, I have not really changed the system since we first started playing in October. I will readily admit that I would like to change certain parts of the system but laziness and school has gotten the better of me.