This setup for Rift S and DCS attempts to ensure a good initial experience for just about anyone starting out.
STOP trying to choose a VR HMD based on advertising. What seems crystal clear in a portal game is not the clarity you’d have in flight simulation.
Some pilots are reporting issues with inconsistent launching into VR, loss of DOF when in the cockpit, tracking issues once in the cockpit, or similar issues. Some of these issues can be traced to the inconsistent startup of VR or a process that doesn’t give you the best shot at it all coming together.
Briefly, seat shakers are transducers added to your chair, desk, controls that along with a finely crafted piece of software, take the mechanical and aerodynamic movements of your jet in DCS and supply tuned frequency vibrations to your chair.
MoeSpeeds turned me on to this product and works very well!