On blade interchangeability in general -- the pivot area indeed has a very tight tolerance loop associated with it. The critical dimensions are measured in tenths of thousandths of an inch, and unless you use a micrometer and are practiced in the proper way to use one, you will not be able to confirm the dimensions. The entire pivot area and lock are, as others have mentioned, hand fitted to insure the pivot action that meets the CRK standard.
In the attempt to exchange one blade for another, the statistics of the situations says that some will work; however, few will operate well enough to meet CRK's outgoing quality standards, and for this reason, we do not recommend blade swapping.
Regarding classic blades in regular handles, the classic blades will nominally make for a safety hazard due to the classic's increased blade length. (I say nominally, because since the Sebenza blades are hand ground, blade length can vary slightly.) This is why CRK does not entertain the purchase of Sebenza blades of a given style swapped with the other style.
Good job. :thumbup: Sacrifice the body for a good cause. I didn't know the regular blade was a little shorter then the classic. Knowing this I would assume that regular blade/classic handle would be the best fit.
