Yeah that's what got me thinking. I have I was going to order 32s and 40s, to build by competition kettlebell set in 8kg increments. But the 40s have been out of stock for a while, so I opted to order 20s, 28s, and 32s instead. I think 4kg jumps will allow more versatility in my training. For example, I was going to attempt The Wolf while waiting, but 16s are extremely light and 24s are pretty damn heavy for the complex. I'm not sure that I'll be able to complete day 3's complex without setting the bells down. I think 20s would've been perfect. I have a hard style 32. I was trying out RoP with it , and was able to get 3x[1,2,3] with it. So I may continue with that until my doubles arrive.