I think you should allow more customization over the grain amounts rather than only allowing users to enter the grains in lbs. It even displays it in lbs & oz, so why not? For example, if you want to use 1 lb 2 oz of a grain, you can't even enter 1.125 lbs since it only allows you to specify out to 2 decimal places so you have to either round it to 1.12 or 1.13 lbs, and then you end up with an even more odd amount like 1 lb 1.9oz or 1 lb 2.1 oz. Even if you could add a drop box to allow the users to specify lbs, oz, etc. would be great! And I'm sure those of us who only know the metric system will appreciate it as well