I agree with Paul a lot is what you get used to. Sometimes it's hard to change. I tried the Jet a little over a year ago. I really like the top blade clamp and as I am a top feeder so the bottom clamp was okay as well. The saw I received vibrated so bad as to be unusable. I talked with the factory several times and we tried everything they could think of but nothing helped. I returned it and they sent another one. It was a lot better but still had quite a bit of vibration it would probably been fine to keep but other than the blade clamp system there was really no difference between the Jet and the EX21 or ST21 as far as the machine and mechanical parts, the tables are a little different, in fact I would think that the motor and parallel link system was exactly the same on the Jet as it is on the EX and ST. I returned that Jet as well and went back to my EX21 until this last spring I purchased a ST21. I still have the EX but use the ST almost exclusively. I really like the larger table once I got used to it. Nice Saw.
grizz
Oregon