It took a bit to get the brake fill configuration correct. Eventually a combination of tubing from the vacuum pump kit and some 1/4" plastic tube got a pretty decent setup. Hooked it up to the pilot side, but it wouldn't pump up the line. Just to be sure, I switched to the passenger side and the fluid pumped up the line ok and into the reservoir. Going back to the pilot side, I discovered the overflow vent needed to be loosened to get the fluid to flow. Not sure why that is, I confirmed the vent hole is open. Anyways, I filled the pilot side and reset the overflow vent. Both brakes are firm and I can see movement of the calipers. The plane is still on vehicle dollies, so I didn't confirm effective engagement yet. This is my first time working with brake lines, so it took a while.