Yea, pretty much it was my fault for not checking the gear alignment. as for methods, I used to use a piece of aluminum foil, and now, pretty much I can just look at it and tell if they are lined up right I just forgot too this time. As for the shift point, it's perfect. and again, if anyone knows where I can get replacement gears for a three speed transmission please let me know. I have already looked on tower hobbies.