diff --git a/vskernels/kernels/spline.py b/vskernels/kernels/spline.py
index 9bbbff8..6d9cf38 100644
--- a/vskernels/kernels/spline.py
+++ b/vskernels/kernels/spline.py
@@ -12,10 +12,6 @@
     'Spline16',
     'Spline36',
     'Spline64',
-    'Spline100',
-    'Spline144',
-    'Spline196',
-    'Spline256',
 ]
 
 
@@ -65,31 +61,3 @@ class Spline64(ComplexKernel):
 
     scale_function = resample_function = core.lazy.resize.Spline64
     descale_function = core.lazy.descale.Despline64
-
-
-class Spline100(Spline):
-    """fmtconv's spline kernel with taps=5."""
-
-    def __init__(self, **kwargs: Any) -> None:
-        super().__init__(taps=5, **kwargs)
-
-
-class Spline144(Spline):
-    """fmtconv's spline kernel with taps=6."""
-
-    def __init__(self, **kwargs: Any) -> None:
-        super().__init__(taps=6, **kwargs)
-
-
-class Spline196(Spline):
-    """fmtconv's spline kernel with taps=7."""
-
-    def __init__(self, **kwargs: Any) -> None:
-        super().__init__(taps=7, **kwargs)
-
-
-class Spline256(Spline):
-    """fmtconv's spline kernel with taps=8."""
-
-    def __init__(self, **kwargs: Any) -> None:
-        super().__init__(taps=8, **kwargs)
diff --git a/vskernels/kernels/various.py b/vskernels/kernels/various.py
index 7215aa6..de134a1 100644
--- a/vskernels/kernels/various.py
+++ b/vskernels/kernels/various.py
@@ -11,9 +11,7 @@
     'BlackManMinLobe',
     'Sinc',
     'Gaussian',
-    'NearestNeighbour',
     'EwaBicubic',
-    'EwaJinc',
     'EwaLanczos',
     'EwaGinseng',
     'EwaHann',
@@ -52,22 +50,15 @@ class Gaussian(FmtConv):
 
     _kernel = 'gaussian'
 
-    def __init__(self, curve: int = 30, **kwargs: Any) -> None:
+    def __init__(self, curve: float = 30, **kwargs: Any) -> None:
         super().__init__(a1=curve, **kwargs)
 
 
-class NearestNeighbour(Gaussian):
-    """Nearest Neighbour kernel."""
-
-    def __init__(self, **kwargs: Any) -> None:
-        super().__init__(100, **kwargs)
-
-
 class EwaBicubic(Placebo):
     _kernel = 'ewa_robidoux'
 
     def __init__(self, b: float = 0.0, c: float = 0.5, radius: int | None = None, **kwargs: Any) -> None:
-        radius = kwargs.pop('taps', None)
+        radius = kwargs.pop('taps', radius)
 
         if radius is None:
             radius = 1 if (b, c) == (0, 0) else 2
@@ -82,13 +73,6 @@ def __init__(self, taps: float = 3.2383154841662362076499, **kwargs: Any) -> Non
         super().__init__(taps, None, None, **kwargs)
 
 
-class EwaJinc(EwaLanczos):
-    def __init__(self, taps: float = 3.2383154841662362076499, **kwargs: Any) -> None:
-        print(DeprecationWarning('EwaJinc is deprecated! Switch over to EwaLanczos.'))
-
-        super().__init__(taps, None, None, **kwargs)
-
-
 class EwaGinseng(Placebo):
     _kernel = 'ewa_ginseng'