This is the spoiler thing I was referring to. Not sure if that qualifies as a full kammback but anyways, semantics.

Mine would be lower down the hatch, obviously, consistent with where the profile needs to be filled in.
I'm going to give the project a shot, although it'll be the last one. It's more for learning some more fabbing and if it doesn't help (or hinders) it was worth the lesson and off it goes. I don't know that the Insight has quite the same profile as the Crosstour (specifically the angle), although it looks pretty darn close.
Nothing done yet.
Pre-project is measuring coast down time and getting a good baseline MPG (it hovers around 22-23, ouch ouch ouch). I want this project to be data driven and plan on doing one thing at a time, measuring, then moving on.
First project is going to be side mirror replacement with low profile, "F1 style" mirrors. I wanted to remove them completely and go with a panoramic rearview but the blind spots on the Crosstour make it impossible.
Moon covers for the wheels will be next. It took a while to find 18" pie trays that don't cost as much as Moon Eyes anyways but I found them. I plan on drilling and threading the lugnuts for that. I've also got a friend who can help with balancing, if it's possible to balance them afterwards.
Smoothing the front fascia comes next. I work in aerospace and get a lot of free CF and the occasional Kydex. I want to cover the foglights in something clear and heat formable. I also want to put a blank plate over the H emblem and potentially relocate the front license plate holder. I also want to test a radiator blocker on the lower grille. TX gets got but this vehicle is seriously underworked for it's engine capacity and size.
I'd love to do rear wheel covers, if I can find a aesthetically pleasing material. CF or thick lexan would be ideal (I think).
Then maybe the spoiler/kammback, if school doesn't take over my life again. There's also a few creature comfort/driveability mods I want to do that are outside the scope.