Even though my Dadant is older and has the Jones motor, it does not have the friction slip clutch design but is like the newer ones.
Balanced and out of round are two different things in my opinion. When my reel spins, it looks like it is out of round when judging the distances between it and the wall of the extractor, but it is perfectly balanced.
Just for your information, even though my dial only has 1/4 turn markings, I have never had to run it at full speed. 3/4 speed for a few minutes to finish off the load is plenty.
Apparently these extractors are capable of running 32 or 34 mediums, or 20 deeps, but I only ever run 20 mediums, one for each slot.
I love this extractor, and would buy another used one in a heartbeat (for the right price). I can tear it apart in minutes and carry parts easily so moving it around is about as simple as it gets.