Have another look at the split flap scenario in the POH.
I think a fully assymetric split condition is uncontrollable.
Longer than usual time for the gear selector to return in the hydraulic test indicates possible impending hydraulic failure.
The turbos never kick in together on T/O, expect yaw. 30" before brakes release helps.
Trim back a bit more than you think before the flare to assist with reduced evevator authority.
Use smooth boost reduction on descent and min pwr on taxi to minimise cool down wait before shut down.
Do a search, there's been a couple of good threads previously.
[ 22 November 2001: Message edited by: daytrader ]