Today, among many other chores, I filled the pot holes in our road and blew up the tires on the rig. Time to test the new brake system. Actually, still a bit cautious after two bad spills in a row, I waited until Dave got home before I took a test drive.
The dogs were so excited when they realized we were going for a run that they kept running off down the road even before they were in harness.
a mighty heave and we were off
smiles all around
neither dog wanted the run to be over 
The brakes do not hold when going downhill under power. I am going to have to wrap my head around that sensation. The dogs have a ways to go before they are fit enough to take the hills without my pushing assistance. I have a ways to go before I can offer speed with my pushing assistance.