I have a Bernina Frame, not a Grace. I am a Bernina Die Hard and have been for 25 years. I still have my 930 and have never had it in the shop or adjusted the tension. I am afraid to step out of the box as you cant beat the tension. Also, there will come a time when I will want a bigger frame, my thoughts are I would still have a good machine. I appreciate your feedback, It is a tough decision on which way to go.