precision is something you learn about, and too much of it will slow you down

i see you've realized that in tunerpro, a lot of the time the value you enter doesn't end up exact when it's saved to the bin.

that's because tunerpro allows you to enter pretty much anything (like 1.234) where in reality the value in your bin is usually in 8 bit (only 256 possible values) or 16 bits (only 65536 possible values) and can't be that precise, so when you save, close the table, and then re-open it, you'll see the 'real' value.

tunerpro doesn't really do a good job of presenting that limitation when you're entering data but that's okay because it stops you being distracted by unnecessary precision.

it's really common that you get some data that you need to set a value to 1.234 but the ECM's code only allows it to be 1 or something, and in those cases you get what you get

so, lets see how your tables ended up?

an engine like this at wide open throttle isn't a very precise machine with regards to fuel. in my experience injector voltage offsets make barely any difference to how your engine runs at very high airflows