Rev,
As OLD-N-SLOW said, try 10 - 11 psi in your rear tire for the soft stuff,... I would suggest staying at 12 - 14 in the front - stock KDX rims are soft as microwaved butter.
With a Race Tech revalve you will lose a lot of your stock plushness. You will find that riding faster will make a huge difference over sharp edged hits and this shouldn't be a problem with you reworked suspension,... that's why you had it done right? :D
Did you do the re-valve yourself? If so, what stack did you go with? On my KDX I had much better results using a single stage stack than with the configuration RT recommended. If you don't get used to your new boingers I strongly suggest popping out the base valves and re-stacking with a straight ch7. When I did this my front end stuck like glue and, as long as I pushed it hard, it erased sharp hits and rock gardens with ease. In cruise mode though, the ride was quite rough :D
A set of Dunlop 756's would also make a huge difference in traction and handling. The Bridgestone M78 rear is ok for 2 or 3 rides,... once the knobs barely start to round off it handles like a slick ( I just took mine off my KTM last night after 3 rides). The 756 wears like iron compared to a Bridgestone. A lot of riders here use Michelin tires (m12 or s12 I'm not sure,... try a search) and swear by them
good luck