Traditionally I've recorded each drum kit piece from my outboard synth on a separate track for maximum flexibility.
 
It occurs to me that recording addictive drums using the same process is pointless as the drums are already processed and AD uses room & overhead mikes as part of the mix or are you supposed to record them separately as well ???
 
I'm guessing there is no wrong/right answer but how do people record VST Drums
 
Thanks !

Well it depends on the sort off vst drum package your using I use arturia spark vdm this vst allows me to change the effects reverb, chorus etc on the kit chosen or each instrument in a pattern created. Looks like if you want more tweeking capability your going to have to upgrade your vst drum package

Thats just it I dont know if I need flexability
 
Am I being obsessive in recording each instrument separately for maximum tweakability as I've been accustomed to, or should I just to say ..... 'hang it' & get the drums sounding right and record to stereo track 

  I think that it really does come down to personal preference. 
  I use mostly FXpansion BFD2 for drums and I set up a template so that I always have individual tracks for kick,snare, toms, cymbals and room mikes.
  I come from mixing on a real mixing board and when it's time to mix,I want to look at the console view with an individual faders for every sound that I will most likely be adjusting during the mix process.
  I don't want to be opening the VSTi Gui to make frequent adjustments.
  Then there are always favorite plugins that I like to apply to individual drums that are not available from within the drum plugin.
 
  

As other have said - it comes down to which product you're using and personal style.  I use BFD2 and typically have it route into a single track, because BFD2 has a complete mixer with effects and everyting i need within the VST GUI, so if I need the snare a little higher, or want to add compression or EQ to the bass drum, I can do that in the VST GUI and not have to worry about having yet another 10-12 tracks on my overall project. 
 
But it all depends on your preference.  Having each drum / kit piece route to an individual track on your DAW does give you increased flexibility for routing to subs, etc.  and makes it easer to leverage your DAW effects on individual kit pieces, but again - it all depends on your preference and whether you need those effects, vs. using what's in yoru drum VST.
Hope that helps.
Russ