As you can see from the chart, one of the areas that SRAM is a lot lighter is the shifter. If you hold one in your hand, you can see why. The Shimano shifter feels (and is) much more substantial. Personally, I like this. The SRAM shifters feels small and cheap to me. I ran Force for a year and the deal breaker was the shifters. I just couldn't get used to them. The substantial bump in the front of the Shimano shifter (and more so on Campy) makes my hand feel very secure.

To each his own.

Bob