Jack
I gave myself a surprise on a long ferry flight in a B2. Experience was an issue then as well since I had 1:30 on type when I left UK. Cruising at 1000ft through Europe was giving me 35-36% per hour (instead of the 30% I had been expecting) and an endurance of 2:35 to chicken fuel. Later, through Egypt I was up at 11,000ft and it was around 24% per hour and I was staying up for 3:25. Subsequently I did some graphs for my own use in Ethiopia which was very helpful.
The fuel consumption presentation in the flight manual was not very useful on the subject.
Great aircraft though, I wish I had one now!