cold & dark

I am new of the forum even if I have been reading a lot since a couple of years. I always tought I needed to learn better how to use PMDG products before asking. But this time I need a bit of help.First of all I want to start a cold and dark 747-400 PMDG in a specific airport with a specific load configuration and fuel by the PMDG Load Manager.Secondly I need advice on the best setting of surface controls in my joystick (I have FSUIPC registered, I tried several curves, but I would like to know which one really resembles the effects of real yoke, in term of elasticity I mean).Last thing: while performing emergency descent as instructed by capt. randazzo (speed brakes set and FLCH), I noticed I could not mantain Vmo 365/mach 0.900 at all levels without reaching overspeed conditions. is it a real condition this??Thanks for your help.Claudio Capozziat LIRF PS: congratulations to PMDG for the quality of their aircraft!