ntstlgl1970 -- Did you disconnect the sway bar end links when you did the weight scaling? Try doing that and then re-weigh as you might find differences.... then re-attach the sway bar end links equally by shimming each end, assuming they are typical stock-style (pending your sway bar end link designs). Also, be certain tire pressures are where you want them to be, and of course with driver's weight included at the driver's seat.
"Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers!
Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!