Hi, purchased your KE4 Max heads. Beautiful clubheads. I am going to build the set with some reg flex TT SL shafts (370 parallel tip) I have from a set of irons I purchased on ebay years ago. The issue I have is I am not sure how these were originally tipped and or butt trimmed. Can you tell me what the tip to the first step would be for a 7 iron if it was tipped to flex to a reg flex. If I know what a typical tip trim is for a 7 iron, or any iron, leaves from tip to first step I can then determine what shaft to put in what heads for desired flex. Or, can you tell me what the tip to the first step on a new TT SL should be. Hope this makes sense.