Those are extremely low signal strengths on the 72.7 sat. You might need a re-point and peaking of your dish. I am getting between 60 - 70 on all of the transponder except one low transponder at 46. It used to be in the 60s too, till recently. But I am getting different signal strengths on many of the transponders on all 3 satellites; 61.5 /72.7/77 .