Recently purchased a flex liner to reline my fireplace. Thinking we had covered all of the bases with measurements and parts, my buddy & I organized all of the materials and began to insert the liner down the chimney. It appears the builder of the chimney my not have lined the clay tiles up and are not positioned for a smooth transition from one to the next. This is really evident where I have a bend within the chimney, about a 60 to 65 degree angle. Has anyone removed the clay tile and what is involved? I understand there are tile breakers for this but only works on straight vertical chimneys, no bends. Any suggestions?