You stated in one of your post that the taurus 42 is a stronger engine than a zdz 40 and I disagree.You also stated the taurus swings a 22/8 at 7000 rpm not 7200.While the zdz is turning a heavier prop 20/10 at more than 7000 rpm.I'm sure if you put a light prop such as a 22/8 on a zdz 40 you will get the same result or more.