I have had to tweak a couple of the new bobbins a little bit for my 27's but other than them being a tad shy in length they work great.
I think the quality control is off a bit with the company that makes them for Hancock Fabrics because the Class 66 bobbins I got for Christmas 4 or 5 of them would wobble and the bobbin winder would hit the sides of the bobbin. I had to true them up the best I could and still threw 3 of them away.
I do not have a 28 or 128 yet but I will have one before its over with!!! :mrgreen:
Billy