What I've read about this trans setup (Suncoast) is that they have to port and respring some of the galleries in the valve body. mine is set up to provide more flow with larger ports and it sounds like yours is set up with less flow and higher pressure. hard to say which setup is better. the suncoast package contains precise instructions as to how to set it up and the ports must be drilled perfectly for the system to work properly. It sounds like they didn't do it properly. I also run catapillar spec fluid in my tranny for reliability. it can take much higher temps than even synthetic trans fluids - good for low speed heavy loads where the cooler doesn't work as well. Expensive stuff though.