Dont worry about being linked to Otis cuz of a glide door operator. Specify it has to be a glide with discreet signals and pretty much every mod controller you chose will be able to use it. I don't work for Otis or Unitec and I don't get anything out of convincing people to use a glide door operator. I just think they perform well on Otis cars and they're fast and easier to install then the rest of the door operators made to go on Otis cars