I did two legs that day in EWR. Not a problem. Type I de-ice then Type IV anti-ice. Pre-takeoff check from "snowflake" (chief pilot in SUV). Off you go. The only delay I had that day was the de-icing itself and I had to wait about 15 minutes for a gate. Even going to EWR I had 1/2 turn in holding and that was the only delay.