Basic questions about producer control flow

Hi:

I'm using AMQ 5.8 and I've got some basic questions about producer control flow

- if I disable producerControlFlow in broker , does still producers
receive ProducerAck messages/commands ?

- if I disable producerControlFlow in broker, the producers who send
persistent messages , does still they receive ProducerAck
messages/commands?

- if I disable producerControlFlow in broker and my producer sets
window size ( setProducerWindowSize ), what is the behaviour ?

Thanks and regards