I will not comment on any of the other rigs out there, but I do know that the the Vector III M-series and Micron were designed with free flying in mind. They have the best pin protection and most secure bridle protection on the market( look how many other container manufacturers have copied there designs ). The riser protection also incorporates market leading designs with external and internal riser covers, Relative Workshop was the first to incorporate this in a container and have perfected it in their latest designs.