Is this bolded number and point corresponding to G? Because this will make the problem easier to understand. I'm not really sure what you're trying to do when you say "oscillator".

I'm assuming you took the modular inverse G*(10G)^-1 to get the 0.1 result? (And not just did straight up division of the 10 by the 1 )

I don't really see the point of using G/10 as the generator point for Kangaroo but it's technically possible if you edit the jump table.