FiTech EFI system

Ken, thanks for the detailed write up and pics. I've got a FAST EZ EFI and Aeromotive Phantom Stealth fuel pump still in the box that I'll be returning.
I have a question about the wiring: all the EFI mfgs require hot electrical source in both On/Run and Crank positions. When I talked to the FAST tech last month he said just that split second in between is enough to disrupt the ECU. Yesterday when I asked the FiTech tech the same question he said it wasn't going to be an issue. Did you modify your wiring at the ignition switch? If not, do you notice anything happening to the system during starting?

I may not be a fair comparison as i have a Ron Francis wiring kit. I have an ignition switch and then a keyless start button. I used my switched 12 volt electrical choke line to provide the ignition on power. I have not had any issues with the power supply so far.
The Always on line which retains the Fitech ECU memory, I jumpered in to a line that provides constant 12 volt to my radio memory line. My battery is in the trunk and I have a switch that can turn all the power off, ( except that radio memory line)