I have logged two tulip poplar cruck trees on my lot. They have an inside diameter of more than 25' of length. I am now planning to leave them round for strength (18" & 15" crosshairs at the butt tapering to 11" & 9" at the tip). I am eager to hear any and all interest and advice but particularly wondering if a kerf cut trunk to tip on the inside to the heartwood might reduce later checking. I am already end sealing and spraying peeled surfaces with brine.