It's all about the BASE! In any construction project it is extremely important to start with a strong base. RG uses a concrete base that is independent from the post system. It is a 40lb precast concrete with three point anchoring system. Below are pics of the bases and RG Systems that were damaged by unforeseen circumstances such as a fallen tree and a truck losing control. Each of the damaged mailbox customers were able to bend their posts enough so that they were able to continue receiving mail service. Both damaged systems only required new straight post sections. Now think of the work required if those were standard wooden posts. You can't prevent things from happening to your mailbox but RG can stop you from starting from scratch each time.
This picture demonstrates why the RG system is effective. This pic was taken during an installation. The base of RG is several feet further away from the road surface. This protects the system from a direct hit from vehicles leaving the road and reduces hits from flying items such as ice or snow from a snow plows clearing the road. Then add the ability to sway away and you get the best system available!