Or I'm just getting bogged down in the details and the numbers are close enough. 35ly could be 35.6ly and "an hour" could be just a bit over 1 hour. A rounding error here or there and the averages can be way off.
There's every chance of that. You're working out jump times to a tenth of a second but trying to do it with input data that's probably quoting jump ranges to an accuracy of +/- 1ly (or worse if the posters aren't in that ship config at the minute), distances that probably come from plotting something in the 950-1000ly range and calling it 1000ly and hours that are at best +/- 2 minutes.
(I offer no data of my own, I'm quite happy to bimble about the place, if I do 40 jumps in an hour then I'm really motoring along the way I fly...)
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