Best Practice for setting up Expression Maps and Sound slots Cubase Pro 15

Hi there, I am setting up my Spitfire BBC Pro articulations using keyswitches. Expression maps were downloaded from Spitfire.

Given all the confusion of Middle C being C3 and not C4 I asked the Spitfire bot what setting to have in BBC Pro Orchestra. It said to toggle the setting below off. Gemini and Chat GPT can’t agree on this setting.

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They are not triggering the changes. Is there anything obvious that I’m going wrong. Note I am new to this. I might be better to use UACC 32 but best ask the experts.

Thank in advance,

Andy

Here are some screen shots.

PS. Windows 11 Home (25H2 latest), 32DDR4 RAM