I had somewhat the same situation so I researched what seemed to be the best for the price fix as my steering wanted to follow the ruts in the road instead of going where it we steered.
I installed a Safe-T-Plus and it was like black and white.
I wish that I would have done it right from the start but the best way is to learn is by experience.
I can not refer to the other suggestions you mentioned as I can only speak from experienced knowledge.
Best luck on your unit and do not put on a lot of STUFF that costs you money and does not change the steering dynamic.