What mistake have you done and what have you learn about it.

Using switch motors instead of push rods, all switches are working fine at the moment but I think I would have liked the basic mechanical system better, I guess I like things unsophisticated.
 
RIO
Yeah I have the same "plan", have built 'n' ripped out a lot of stuff , the only real problem is having spots too wide{4ft is too wide} but it's all fun