diff --git a/ravenpy/config/commands.py b/ravenpy/config/commands.py
index 2a430a84..1daefb09 100644
--- a/ravenpy/config/commands.py
+++ b/ravenpy/config/commands.py
@@ -959,9 +959,9 @@ def __str__(self):
 
 class VegetationClass(Record):
     name: str = ""
-    max_ht: float = 0.0
-    max_lai: float = 0.0
-    max_leaf_cond: float = 0.0
+    max_ht: Sym = 0.0
+    max_lai: Sym = 0.0
+    max_leaf_cond: Sym = 0.0
 
     def __str__(self):
         template = "{name:<16},{max_ht:>18},{max_lai:>18},{max_leaf_cond:>18}"
diff --git a/ravenpy/config/emulators/hbvec.py b/ravenpy/config/emulators/hbvec.py
index 88ef025e..32700a7d 100644
--- a/ravenpy/config/emulators/hbvec.py
+++ b/ravenpy/config/emulators/hbvec.py
@@ -15,7 +15,7 @@
 
 @dataclass(config=SymConfig)
 class P(Params):
-    X01: Sym = Variable("X01")  #
+    X01: Sym = Variable("X01")
     X02: Sym = Variable("X02")
     X03: Sym = Variable("X03")
     X04: Sym = Variable("X04")
diff --git a/ravenpy/config/options.py b/ravenpy/config/options.py
index 3b4bd963..6c768c9c 100644
--- a/ravenpy/config/options.py
+++ b/ravenpy/config/options.py
@@ -310,6 +310,13 @@ class Evaporation(Enum):
     OUDIN = "PET_OUDIN"
 
 
+class Interpolation(Enum):
+    FROM_FILE = "INTERP_FROM_FILE"
+    AVERAGE_ALL = "INTERP_AVERAGE_ALL"
+    NEAREST_NEIGHBOR = "INTERP_NEAREST_NEIGHBOR"
+    INVERSE_DISTANCE = "INTERP_INVERSE_DISTANCE"
+
+
 class LWRadiationMethod(Enum):
     DATA = "LW_RAD_DATA"
     DEFAULT = "LW_RAD_DEFAULT"