What do you prefer in a swing weight in irons. Do you find that you prefer a lighter swing weight in graphite shafted irons vs steel. Cobra stock specs on KFTs in steel is D2 while graphite is C9. Hadn’t given it much thought till I received the new c721 Tour Edge irons. In my initial testing with them I could tell they were weighted heavier than my KFTs. I don’t have a scale so had to calculate it by weight and balance point input into swing weight calculator. They came in at D3.5 up to D5. The increased swing weight makes them play really nice. Makes me want to increase swing weight on my graphite shafted KFTs. They are currently close to the stock C9. Am I nuts. Before I started playing the 721s I thought I was satisfied with the sw of the KFTs