It's been a while since I flew the T-1 but wasn't the anti-ice checks done with the engine RPM at a certain rage above idle? That could have been it. I do know this, the USAF takes what would have been a fine set of manufacturers checklists and throws them out and makes their own for jets that are civilian conversions. I spoke with a Beechcraft guy a while back and he said that the AF added so many steps to the checklist that it just added the amount of time needed to get the airplane flying. The funniest part of that was the fuel system checks, opening and closing valves and such, which he said were all designed to be fail-op anyway. Just wearing out perfectly good valves etc...