I am currently coming out of a mid acts dispensationalism group that I got involved with through TIKTOK. I just never really could get into a doctrine created through a book they state isn't even a book of doctrine. While also loving the KJV I could not get into the worship of a translation, especially when I know that it in and of itself isn't perfect like they claim.
That being said the one thing I disagree with is that Jesus, the 12 and Paul preached the same thing. Jesus came specifically for the lost sheep during His time here on earth. Yes He died for us all but His mission was Israel and the coming of the kingdom. The disciple preached the kingdom as well and were preparing the jews for that coming kingdom. Now I believe we can all agree that the mission changed at the stoning of Stephen when they rejected the Holy Spirit. We then get a transitionary period and the conversion of Paul.
Paul wasn't preaching the coming of the kingdom, he didn't preach baptism by water which was specific to the kingdom message. Paul preached the baptism into "one Spirit" the new man. So while the Good News was always Christ redeeming us the message and the goal changed. Paul said we were to be looking for our gathering together unto Him not the coming kingdom. So Pauls message was different than Jesus message on earth and the 12's message. Yes they got together and they discussed this and Paul was given the right hand of fellowship and approval. Yet we also see a division and separation between the two camps when Paul rebuked Peter and they went their separate ways, Peter to the circumcision and Paul to the gentile.
So while I believe mid acts is incorrect about a good deal, what I can agree with is that Paul has a special dispensation given to him by Christ to fulfill different from the 12. This is the age where we are now and thus we must accept the distinction between the two.