We are prepared to manufacture one offs that can have just the shims you require to the strengths you require that still may give you more room in the bore of the room temperature shims We also make 1 off specials mainly aimed at the solids market that at present exist on shims manufactured for liquids users We now have a range of upgraded RT shims for 500/51 and 600/51 magnets installed by Varian over the last 20 years