It's almost standard practice. It also makes it easy to accommodate for handles and run up time for dynamics ( which is great , cause if you need 100 frames of run up, you don't have to go negative , or slide entire scene animation ).
You can set you render settings to what you want and make it a preset for everyone , or set it as a scene setup script , or tie it into your project management software of choice.
And I think you can set it in new scene prefs under time line. (Not in front of Maya at the moment )
Dynamics all has start time settings , just not sure about MASH. I don't know how it's dynamic nodes (like jiggle ) handle start time
-=s