A guide wire for use in a medical procedure having a shapeable tip integral with and made from the distal end of a superelastic nitinol distal section of the guide wire, wherein the shapeable tip can be finger kinked. The support may aid in removing heat from the circuits through fluid circulating through the support, which may be controlled in a closed-loop manner. A process for improving the lubricating properties of a lower quality base oil. The best matched agents are selected and the program run again, the steps being repeated until a required level of comparison with real behavior is reached. All other parasitic resistances in the circuits, consisting primarily of parasitic interconnect resistances, are minimized.