Lopi Lace Scarf Update

Ok, I am having problems with the scarf pattern. The first half of the pattern and the second half just don't add up. And neither adds up to the 29 stitches the pattern says to cast on at the beginning, the first half of the pattern adds up to 33 and the second adds up to 35, and I can't see anywhere that you increase or decrease. I know there are yarn overs and ssk, but doesn't a yo with an ssk equal the same number of stitches you start with? If anyone who reads this has done this pattern with success, please help! I am not sure what I am doing incorrectly.