I believe they do buddy, Think Jay is/was running one in his autobox.
You can run 1 bar on a ct9 but they run outa puff around 6000 rpm, mine was running just before fuel cut at .85 and its pretty sharp, when I fit the fmic the power powerband in the midrange increased and it pulls a tad longer into 62/6300 rpm now.
Greddy Profec A spec I use
You could ask the turbo to produce whatever boost pressure you like, but as I say, eventually you will just be adding so much hot air into the mix, that the amount of oxygen molecules that will actually be available will be less than if you ran it within its efficiency range.
I would baseline the turbo at 0.8 bar, then up the boost by other means, I.E. Front mount intercooler, bigger downpipe, hybridised turbo etc.
It's your basic gas fluid dynamics in action.
The faster the molecules move around the closed system, the greater the pressure.
Kinetic energy of molecules in a closed system can be "felt" as temperature. The greater the kinetic energy, the greater the temperature.
Since temperature at a molecular level is discrete, we can only "feel" the average temperature, which is probably where a lot of misconceptions are misinterpreted.
This is why bigger turbos are better at producing more boost, since they are not adding as much heat into the compressed air, therefore results in greater number of combustible molecules.
The easiest way to picture it is, how much better does your car operate on a cold winters evening, compared to the middle of a heat wave in the summer. The colder, denser, air, provides more combustible molecules when compressed to 0.8 bar of boost, than what you get on the summers day. Due to the Idea Gas Law.