Yeah, most definitely:
I have a stock bbshd run by a 14s7p rectangle pack of 35E cells, good for 1kwh at the most. At about 27-30mph cruising for 80% of the ride, I will get close to 60 miles on that 1 kwh. On a full charge after sag, so like 55v 30a (~1300w to the wheel), I can hit 40mph on the flats no wind. I haven't tried a range test with no hot rodding (cruise at 20 mph), it's just too much fun. But, according to the aero calculator, I should expect around 120-130 miles on that 1kwh.
Gearing is a 55T chainring and an 11-34T 9sp cassette. Using the Gear sensor (which has a minor parasitic drag), plus a long shift cable, I found for best performance, I have to spin up high cadence in 1st, then triple shift directly to 5th (it skips 4th naturally), for the most reliable shifting in the smaller cogs, when it counts the most. I have played with it extensively as a 18 year veteran of the bike shop. Any other adjustments to make it better in the larger, low speed cogs will foil the smaller cog adjustments. It will work perfectly w/o the gear sensor, but I love that thing, and it works fine the quirky way that it is.
She is bumpy going fast. I have had 3 chunks taken off my shins from getting launched up into the handlebar, combined with a pedaling cadence of 120 rpm. It hurts like mother when it happens. It's those damn stealth bumps that creep up on you. You have to aim your vision much farther down the trail on a high racer, and re-learn the longer timing of when you see the bump, and when to expect it. At first, all you can see is your legs, but after a while, your brain will make them 'disappear' to a degree, when you get the hang of looking through them rather than at them.
And, all you have to do is fall over on both sides at least once (if clipped in like me), and you have it all figured out. You will learn to not even question whether you will fall, because you just will. Clip out early, and you're good.
I don't know what a DD rear motor is like, with the weight balance. I had the battery on the rear rack, and the bike was almost entirely unrideable over even the tiniest of undulations. The front wheel would come off the ground with almost no effort. It improved with the battery below my seat. I'd like to think that the mid drive helped even out the weight, but I found the bike has a lot of weight up high, which makes low speed tight corners tricky, and it's tough to balance if you're not on it (holding it with one hand while doing something).
But, I love the seating position. My neck, hands, shoulders all feel great with no load on them. But, this high racer with its added weight and awesome speed potential makes for a workout of your arms. At 30 mph you are man-handling it with the steering, which is all in the arms. But, I find that's a good thing, since I am cheating myself a bit with the motor at this level. I need all the activity I can get at 36 years, lol.