I am not a timberframer, just an interested party. I recently looked at the website of a timberframing company in Texas that uses kiln dried timbers. They are called Red Suspenders and their website url is:

http://www.redsuspenderstf.com/company.html

I believe that their techniques might prevent various concerns such as twisting, checking, joints loosening, etc. Any comments and are any others using kiln drying? Thanks.