Both Ren and Gui are Water, but we must analyze in more detail how they really interact with the chart. Sometimes Bazi is not as simple as all Water Stems being the same.
LP Ren Chen:
- Ren: this is not good, because Ren combines Ding away, and the natal chart wants to control Xin. Ren sits on a solid pillar.
- Chen: this is also not good. Look at how it interacts with the branches of your natal chart.
LP Gui Si is better than LP Ren Chen.