So i know that  ESXi/vSphere doesnt have the cloning feature.  So what i plan on doing  is creating a template VM then just copying the vdk to create new VMs.  A  few questions.
- Is it necessary to sysprep prior to shutting down this template VM?  Wont copying change the important stuff?
 
- When creating a new VM, do i create it, but prior to booting do the copy and replace the vdk that was created?
 
- Any benefit as to whether i thin or thick provision when doing this?
 
- If i join the template VM to a domain prior to saving will it keep that setting?
 
Thanks.