diff --git a/src/custom_ord_wrapper.rs b/src/custom_ord_wrapper.rs
index 2e92406..d58afa6 100644
--- a/src/custom_ord_wrapper.rs
+++ b/src/custom_ord_wrapper.rs
@@ -18,47 +18,84 @@ along with range_bounds_map. If not, see <https://www.gnu.org/licenses/>.
 */
 
 use std::cmp::Ordering;
+use std::ops::RangeBounds;
 
-pub enum CustomOrdWrapper<C, T> {
-	CustomOrd(C),
-	Value(T),
+use crate::bound_ord::BoundOrd;
+
+pub enum CustomRangeBoundsOrdWrapper<I, K> {
+	//non real
+	BoundOrd(BoundOrd<I>),
+
+	//real
+	RangeBounds(K),
 }
 
-impl<C, T> Ord for CustomOrdWrapper<C, T>
+impl<I, K> Ord for CustomRangeBoundsOrdWrapper<I, K>
 where
-	C: Fn(&T) -> Ordering,
+	I: Ord + Clone,
+	K: RangeBounds<I>,
 {
 	fn cmp(&self, other: &Self) -> Ordering {
 		match (self, other) {
 			(
-				CustomOrdWrapper::CustomOrd(custom_ord),
-				CustomOrdWrapper::Value(value),
-			) => custom_ord(value),
+				CustomRangeBoundsOrdWrapper::RangeBounds(range_bounds),
+				CustomRangeBoundsOrdWrapper::BoundOrd(bound_ord),
+			) => cmp_range_bounds_with_bound_ord(range_bounds, bound_ord),
 			(
-				CustomOrdWrapper::Value(value),
-				CustomOrdWrapper::CustomOrd(custom_ord),
-			) => custom_ord(value),
-			_ => panic!(
-				"You must have exactly ONE Value and ONE CustomOrd when comparing CustomOrdWrapper's"
-			),
+				CustomRangeBoundsOrdWrapper::BoundOrd(bound_ord),
+				CustomRangeBoundsOrdWrapper::RangeBounds(range_bounds),
+			) => cmp_range_bounds_with_bound_ord(range_bounds, bound_ord)
+				.reverse(),
+			_ => {
+				panic!(
+					"You cannot compare a Non-Real CustomOrdWrapper with another Non-Real CustomOrdWrapper!"
+				);
+			}
 		}
 	}
 }
 
-impl<C, T> PartialOrd for CustomOrdWrapper<C, T>
+fn cmp_range_bounds_with_bound_ord<I, K>(
+	range_bounds: &K,
+	bound_ord: &BoundOrd<I>,
+) -> Ordering
 where
-	C: Fn(&T) -> Ordering,
+	I: Ord + Clone,
+	K: RangeBounds<I>,
+{
+	let start_bound_ord = BoundOrd::start(range_bounds.start_bound().cloned());
+	let end_bound_ord = BoundOrd::end(range_bounds.end_bound().cloned());
+
+	if bound_ord < &start_bound_ord {
+		Ordering::Greater
+	} else if bound_ord > &end_bound_ord {
+		Ordering::Less
+	} else {
+		Ordering::Equal
+	}
+}
+
+impl<I, K> PartialOrd for CustomRangeBoundsOrdWrapper<I, K>
+where
+	I: Ord + Clone,
+	K: RangeBounds<I>,
 {
 	fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
 		Some(self.cmp(other))
 	}
 }
 
-impl<C, T> Eq for CustomOrdWrapper<C, T> where C: Fn(&T) -> Ordering {}
-
-impl<C, T> PartialEq for CustomOrdWrapper<C, T>
+impl<I, K> Eq for CustomRangeBoundsOrdWrapper<I, K>
 where
-	C: Fn(&T) -> Ordering,
+	I: Ord + Clone,
+	K: RangeBounds<I>,
+{
+}
+
+impl<I, K> PartialEq for CustomRangeBoundsOrdWrapper<I, K>
+where
+	I: Ord + Clone,
+	K: RangeBounds<I>,
 {
 	fn eq(&self, other: &Self) -> bool {
 		self.cmp(other).is_eq()
diff --git a/src/range_bounds_map.rs b/src/range_bounds_map.rs
index ccc0c22..4ab0b08 100644
--- a/src/range_bounds_map.rs
+++ b/src/range_bounds_map.rs
@@ -17,6 +17,7 @@ You should have received a copy of the GNU Affero General Public License
 along with range_bounds_map. If not, see <https://www.gnu.org/licenses/>.
 */
 
+use std::cmp::Ordering;
 use std::collections::btree_map::{Cursor, IntoValues};
 use std::collections::BTreeMap;
 use std::fmt::{self, Debug};
@@ -32,6 +33,7 @@ use serde::ser::SerializeMap;
 use serde::{Deserialize, Deserializer, Serialize, Serializer};
 
 use crate::bound_ord::BoundOrd;
+use crate::custom_ord_wrapper::CustomOrdWrapper;
 use crate::TryFromBounds;
 
 /// An ordered map of non-overlapping [`RangeBounds`] based on [`BTreeMap`].
@@ -445,6 +447,14 @@ where
 			panic!("Invalid range_bounds!");
 		}
 
+		let start_bound_ord = BoundOrd::start(range_bounds.start_bound());
+		let end_bound_ord = BoundOrd::end(range_bounds.end_bound());
+
+		let start_bound_custom_ord =
+			CustomOrdWrapper::CustomOrd(|other_range_bounds| {
+				overlapping_comparison(start_bound_ord, other_range_bounds)
+			});
+
 		let start = BoundOrd::start(range_bounds.start_bound().cloned());
 		let end = BoundOrd::end(range_bounds.end_bound().cloned());