An endoluminal prosthesis having an unsupported or flexible region and a delivery system for delivering the endoluminal prosthesis is provided. The uncoiler is arranged downstream from a thickness measuring device which measures the thickness of the strip. , rhodium, catalyst promoted with a bidentate ligand of Formula I, II or III in which each R1-R24 are independently a hydrogen, a hydrocarbyl group, an aromatic ring, a heteroaromatic ring or a halogen atom, or a heterocarbyl group. As the computer program executes for the first time, the list prefetcher associates each checkpoint indication with a location in the building prefetch list. 8 to about 30 kpsi as measured using ASTM D790.