I do use several Innovate products including the LC-1 and several SSI-4’s. What’s you question specifically? Sounds like you have an understanding of what they do already. I’m not familiar with the OT1 so I can’t help you there. I’m waiting on delivery on the new LM-2 which in my opinion is the only way to go for true OBD2 datalogging. But that’s not what you asked…