Just and FYI - Using a dremel to enlarge the i.d. of the smaller i.d. shims is a rather bad idea.
Les at LT-Racing did a set of sachs forks that were previously revalved by another tuner who did this. When Les disassembled this fork - the dremel'ed shims had fractured and come apart inside the fork . Not sure of the mechanism here - You might start a fracture in the shim without realizing it or the temperature increase while grinding on them may effect the temper of the shims.
Les machines the fork to accept the smaller i.d. shim. This has two advantages - enables use of a more standard size shim. And behavior of the fork is much better - small i.d. shim with large diameter face shim. Ability to control fork with valving is improved. The sachs ends up with the similar characteristic to the newer japanese forks that everyone likes - small i.d. shims with large piston and large face shim...
Jeff
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