Help! My Nuts Are Driving Me Nuts!

[Fiddler]

I can't seem to crack my macadamias without also busting the kernel into bits as well. I spent more than a hundred bucks on a macadamia cracker, and it certainly does a good job breaking the shells with very little effort on my part.
    Problem is, only about one in ten comes out as an entire, unbroken kernel. I've let them sit in the Florida sun on a drying rack for a couple of weeks after they fell off the tree. Should I leave them out there longer?
    Any advice would be appreciated.

[Jack, Nipomo]

Depends on the variety, but to get a good crackout shells need to be very dry.  A short time in the oven (not roasting them, just drying them) will make the shells brittle. 

[johnb51]

You poor thing.  Have you seen a doctor?

[Orkine]

Family friendly please 

[Mr. Clean]

Are you de-husking the nuts BEFORE placing them on the drying rack for weeks? 

[Fiddler]

Are you de-husking the nuts BEFORE placing them on the drying rack for weeks?
[/quote
 Yes, once the husks split, I remove them.