I struggle to get the bubbles out of my reservoir before it even goes back into the pump. I also get bubbles in the tubing. You mentioned to switching to anguled sets. What are these please and do you reccommend them? (I constantly speak to my diabetic specialists about receivng updates on new pump equipment/accessories as, other wise, we do not hear about them. It seems that once you are using the pump and your HBA1c is good, you are left to your own devices.