727 Issues 6 months after Build

I'm already assuming here but I'm thinking you put a shift kit in when you rebuilt it? The reason I'm asking is because if it was rebuilt six months ago I don't think the other clutches should also be "half worn out already?" this is why I was wondering about the shift kit and your pressure valve adjustment? If they asked in the instructions for you to turn up the pressure? And obviously a good (kick down) pressure valve adjustment to your carburetor is Paramount with these Transmissions?