What are some of you guys using and could you give some info, likes or dislikes of each you have tried. Mobility, ease of install and removal, bulkyness. We are looking into upgrading from what we use now (Hutchins). Driver has whiplash from a mild head on collision with a spinning car. Have been doing some research on the Necksgen, Hans, Isaac, and Simpons Hybrid systems, lots to choose from but would like to get some real world feedback. Thanks