Anyone know if the head button from the spec 1 will work on the spec 2? I just got a rebuild kit for my spec 2 and noticed the button and piston head looks sand blasted compared to my other engines where they look smooth and have a tiny bit of carbon. Guessing it sucked dirt. But I have the previous xz-b spec 1 (first os speed of the new gen) I could use the button but I don’t know if it is the same. Anyone know? I could take pictures.