I don’t have the head weight, but doing some rough math based on the length and the swing weight compared to the Men’s G425, the G LE2 heads must be really light. Probably between 20-25 grams lighter. Not really sure why they would go so light. I have a lot of experience in working with and developing lightweight clubs and although they can be easier to swing for golfers that have limited strength, too light can effect the playability of the club. The ball is obviously not lighter, so striking with a much lighter mass does not always produce the best results. Lighter overall club weight is important and we can accomplish that with shaft weight, grip weight and length. Anyway, I do think the KE4 MAX irons with the lightest weight, or no weight if you don’t mind the weight cavity, will be as close as you can get with our clubs with all other specs being equal. I think the performance should be great and your only talking about 10 grams difference between the C1 and C6.