Delicious!! Was just gonna post this and here it is! This is a great light flavor dessert. Have been making this for years and here is what we do...and we LOVE it! For a more tangy flavor, I increase the zest in the cake to 1 tablespoon of each for the lemon and lime. I also cut back on the soda and use the juice from one lemon and one lime to make up the difference in volume. Squirt works very well for the soda. Cutting back on the sugar a bit (to 2 1/2 cups) is something I also do. I VERY liberally coat the pan with vegetable spray, then let it cool for up to 10 minutes for easy release from the pan. As for the icing, I use less powdered sugar, (1 cup) add more zest and 1 TBS. each lemon and lime juices to the glaze instead of the soda for a thinner tangy glaze. Let the glaze sit for about 5 minutes before using. Thanks for posting, bmxmama.