Well then the DLE book is wrong I guess. Because my engine runs better set at 43° than it did at 32. All it wanted to do was kick back and pre-ignite at 32° so all of you gentlemen believe what you want but I'm sticking with 43° or 44° Like the book says and what my two-stroke master technician suggested also. But one way to prove my case correct over all the other people is do a cylinder port timing which means setting the timing based off the piston location on the cylinder port. If you do a cylinder port timing I bet you it's going to be closer to my recommendation than the other