I just have two sets of shocks. I use the TRF shocks with the (new) optional Tamiya offroad springs for offroad setups. This includes using the longer shock ends for a higher ride height. I then picked up a set of Spec-R TC shocks (in blue) from TQRC for like $40 or something, which I use for onroad setups. Those are using Spec-R springs and appropriate oil and provide a lower ride height.