Hondata

Setting up and toggling of Sensor Overlays could be more user friendly - avoid having to dig down into the setting tabs.

Ability to see INJ millisecs in a table (before compensations)

Sell a separate knockboard to add-on to those ECU without knock.

I wouldnt bother with the knock board, if you really feel it works well enough to keep, use an ecu that has it to begin with.

Personally, I could care less about the OBD1 knock sensor setup, and I don't use it.

For a full race car I would agree that a knock board is not very useful. However, on a street car, especially one that is turbo or supercharged, it can be a very useful thing as you may get a tank of lesser quality fuel. In this case it may save your engine from potentially damaging detonation at the cost of some power.