diff --git a/src/jimgw/single_event/transforms.py b/src/jimgw/single_event/transforms.py
index ad91a56a..16f84429 100644
--- a/src/jimgw/single_event/transforms.py
+++ b/src/jimgw/single_event/transforms.py
@@ -1,6 +1,6 @@
 import jax.numpy as jnp
 from beartype import beartype as typechecker
-from jaxtyping import Float, Array, jaxtyped
+from jaxtyping import Float, Array, jaxtyped, Bool
 from astropy.time import Time
 
 from jimgw.single_event.detector import GroundBased2G
@@ -227,9 +227,26 @@ def __init__(
         gps_time: Float,
         ifo: GroundBased2G,
         freq_ref: Float = None,
+        with_precession: Bool = False,
     ):
         name_mapping = [["phase_c"], ["phase_det"]]
-        conditional_names = ["ra", "dec", "psi", "iota"]
+        if with_precession:
+            conditional_names = [
+                "ra",
+                "dec",
+                "psi",
+                "theta_jn",
+                "phi_jl",
+                "theta_1",
+                "theta_2",
+                "phi_12",
+                "a_1",
+                "a_2",
+                "q",
+                "M_c",
+            ]
+        else:
+            conditional_names = ["ra", "dec", "psi", "iota"]
         super().__init__(name_mapping, conditional_names)
 
         self.gmst = (
@@ -253,16 +270,13 @@ def __init__(
                     and "phi_12" in conditional_names
                     and "a_1" in conditional_names
                     and "a_2" in conditional_names
-                    and "q" in conditional_names
                     and "M_c" in conditional_names
                     and "q" in conditional_names
                 )
             )
         )
 
-        if "iota" in conditional_names:
-            self.get_iota = lambda x: x["iota"]
-        else:
+        if with_precession:
             self.get_iota = lambda x: spin_to_iota(
                 x["theta_jn"],
                 x["phi_jl"],
@@ -276,6 +290,8 @@ def __init__(
                 self.freq_ref,
                 0.0,
             )
+        else:
+            self.get_iota = lambda x: x["iota"]
 
         @jnp.vectorize
         def _calc_R_det_arg(ra, dec, psi, iota, gmst):
@@ -334,9 +350,26 @@ def __init__(
         dL_min: Float,
         dL_max: Float,
         freq_ref: Float = None,
+        with_precession: Bool = False,
     ):
         name_mapping = [["d_L"], ["d_hat_unbounded"]]
-        conditional_names = ["M_c", "ra", "dec", "psi", "iota"]
+        if with_precession:
+            conditional_names = [
+                "M_c",
+                "ra",
+                "dec",
+                "psi",
+                "theta_jn",
+                "phi_jl",
+                "theta_1",
+                "theta_2",
+                "phi_12",
+                "a_1",
+                "a_2",
+                "q",
+            ]
+        else:
+            conditional_names = ["M_c", "ra", "dec", "psi", "iota"]
         super().__init__(name_mapping, conditional_names)
 
         self.gmst = (
@@ -368,9 +401,7 @@ def __init__(
             and "M_c" in conditional_names
         )
 
-        if "iota" in conditional_names:
-            self.get_iota = lambda x: x["iota"]
-        else:
+        if with_precession:
             self.get_iota = lambda x: spin_to_iota(
                 x["theta_jn"],
                 x["phi_jl"],
@@ -384,6 +415,8 @@ def __init__(
                 self.freq_ref,
                 0.0,
             )
+        else:
+            self.get_iota = lambda x: x["iota"]
 
         @jnp.vectorize
         def _calc_R_dets(ra, dec, psi, iota):