Mixture control Spit?

[DoolittleRaider]

I cannot get the Rich-lean mixture to work. Have assigned key 9 and 0 to lean and rich. No effect. I try to use mouse pointter-click...No effect. Yes, I am set in Realism Options for CEM. All other controls work, with keys or mouse clicks.


Also, on another matter, the Wiki manual for Spit talks about Boost settings. Could someone explain how, when, why one should change "Boost" settings? In Controls, there is a "Boost Cut-out" Key option, and also several "Slow-running Cut Out" key options. I can find no explanation of those functions/keys.

ANy help will be appreciated.