Already on Global Talent visa (Exceptional Promise) — can I reapply under Exceptional Talent?

Hi everyone,
I’m currently on a Global Talent visa in the UK under the Exceptional Promise route. I was wondering is it possible to reapply for a new endorsement and visa under Exceptional Talent instead?

My questions are:

Has anyone successfully switched from Promise to Talent by reapplying with a stronger case?

Is it allowed to apply for a new endorsement and visa while already holding a Global Talent visa?

Would that cancel my current visa?

Would really appreciate any advice or shared experiences — thanks a lot!