diff --git a/IDEHelper/Compiler/BfExprEvaluator.cpp b/IDEHelper/Compiler/BfExprEvaluator.cpp
index e36dc52f..5f40ac99 100644
--- a/IDEHelper/Compiler/BfExprEvaluator.cpp
+++ b/IDEHelper/Compiler/BfExprEvaluator.cpp
@@ -11140,8 +11140,7 @@ void BfExprEvaluator::Visit(BfCastExpression* castExpr)
 bool BfExprEvaluator::IsExactMethodMatch(BfMethodInstance* methodA, BfMethodInstance* methodB, bool ignoreImplicitParams)
 {	
 	if (methodA->mReturnType != methodB->mReturnType)
-		return false;
-
+		return false;	
 	int implicitParamCountA = methodA->GetImplicitParamCount();
 	if (methodA->HasExplicitThis())
 		implicitParamCountA++;
@@ -11703,7 +11702,11 @@ void BfExprEvaluator::Visit(BfDelegateBindExpression* delegateBindExpr)
 	}
 	else
 	{
-		if (!IsExactMethodMatch(methodInstance, bindMethodInstance, true))
+		bool isExactMethodMatch = IsExactMethodMatch(methodInstance, bindMethodInstance, true);
+		if ((mExpectingType != NULL) && (mExpectingType->IsFunction()) && (methodInstance->mMethodDef->mIsMutating != bindMethodInstance->mMethodDef->mIsMutating))
+			isExactMethodMatch = false;
+
+		if (!isExactMethodMatch)
 		{
 			if (bindResult.mCheckedMultipleMethods)
 			{
@@ -11711,8 +11714,8 @@ void BfExprEvaluator::Visit(BfDelegateBindExpression* delegateBindExpr)
 					mModule->TypeToString(delegateTypeInstance).c_str()), delegateBindExpr->mTarget);
 			}
 			else
-			{
-				mModule->Fail(StrFormat("Method '%s' does not match %s '%s'", mModule->MethodToString(bindMethodInstance).c_str(), bindTypeName,
+			{				
+				mModule->Fail(StrFormat("Method '%s' does not match %s '%s'", mModule->MethodToString(bindMethodInstance, (BfMethodNameFlags)(BfMethodNameFlag_IncludeReturnType | BfMethodNameFlag_IncludeMut)).c_str(), bindTypeName,
 					mModule->TypeToString(delegateTypeInstance).c_str()), delegateBindExpr->mTarget);
 			}
 			mResult = BfTypedValue();
@@ -11732,7 +11735,7 @@ void BfExprEvaluator::Visit(BfDelegateBindExpression* delegateBindExpr)
 	}
 
 	bool hasIncompatibleCallingConventions = !mModule->mSystem->IsCompatibleCallingConvention(methodInstance->mCallingConvention, bindMethodInstance->mCallingConvention);
-
+	
 	auto _GetInvokeMethodName = [&]()
 	{
 		String methodName = "Invoke$";
@@ -11806,11 +11809,14 @@ void BfExprEvaluator::Visit(BfDelegateBindExpression* delegateBindExpr)
 
 				if (result)
 				{
-					String methodName = _GetInvokeMethodName();
+					String methodName = _GetInvokeMethodName();					
 
 					SizedArray<BfIRType, 8> irParamTypes;
 					BfIRType irReturnType;
-					bindMethodInstance->GetIRFunctionInfo(mModule, irReturnType, irParamTypes);
+					methodInstance->GetIRFunctionInfo(mModule, irReturnType, irParamTypes);
+
+					int thisFuncParamIdx = methodInstance->GetThisIdx();
+					int thisBindParamIdx = methodInstance->GetThisIdx();
 
 					auto prevActiveFunction = mModule->mBfIRBuilder->GetActiveFunction();
 					auto prevInsertBlock = mModule->mBfIRBuilder->GetInsertBlock();
diff --git a/IDEHelper/Compiler/BfModule.cpp b/IDEHelper/Compiler/BfModule.cpp
index 0036da17..1d8a28b2 100644
--- a/IDEHelper/Compiler/BfModule.cpp
+++ b/IDEHelper/Compiler/BfModule.cpp
@@ -10524,7 +10524,7 @@ bool BfModule::HasMixin(BfTypeInstance* typeInstance, const StringImpl& methodNa
 }
 
 StringT<128> BfModule::MethodToString(BfMethodInstance* methodInst, BfMethodNameFlags methodNameFlags, BfTypeVector* typeGenericArgs, BfTypeVector* methodGenericArgs)
-{	
+{
 	auto methodDef = methodInst->mMethodDef;
 	bool allowResolveGenericParamNames = ((methodNameFlags & BfMethodNameFlag_ResolveGenericParamNames) != 0);
 
@@ -10769,8 +10769,16 @@ StringT<128> BfModule::MethodToString(BfMethodInstance* methodInst, BfMethodName
 
 	if (accessorString.length() != 0)
 	{
-		methodName += " " + accessorString;
+		methodName += " ";
+		methodName += accessorString;
 	}
+
+	if ((methodNameFlags & BfMethodNameFlag_IncludeMut) != 0)
+	{
+		if ((methodDef->mIsMutating) && (methodInst->GetOwner()->IsValueType()))
+			methodName += " mut";
+	}
+
 	return methodName;
 }
 
diff --git a/IDEHelper/Compiler/BfResolvedTypeUtils.cpp b/IDEHelper/Compiler/BfResolvedTypeUtils.cpp
index 7b85a000..c99a4e77 100644
--- a/IDEHelper/Compiler/BfResolvedTypeUtils.cpp
+++ b/IDEHelper/Compiler/BfResolvedTypeUtils.cpp
@@ -1298,15 +1298,6 @@ void BfMethodInstance::GetIRFunctionInfo(BfModule* module, BfIRType& returnType,
 			}							
 		}
 
-// 		if ((paramIdx == 0) && (GetParamName(0) == "this") && (checkType->IsPointer()))
-// 		{
-// 			// We don't actually pass a this pointer for mut methods in valueless structs
-// 			auto underlyingType = checkType->GetUnderlyingType();
-// 			module->PopulateType(underlyingType, BfPopulateType_Data);
-// 			if (underlyingType->IsValuelessType())
-// 				continue;
-// 		}
-
 		if (checkType->CanBeValuelessType())
 			module->PopulateType(checkType, BfPopulateType_Data);
 		if ((checkType->IsValuelessType()) && (!checkType->IsMethodRef()))
diff --git a/IDEHelper/Compiler/BfResolvedTypeUtils.h b/IDEHelper/Compiler/BfResolvedTypeUtils.h
index 0f7a6fa9..7563609d 100644
--- a/IDEHelper/Compiler/BfResolvedTypeUtils.h
+++ b/IDEHelper/Compiler/BfResolvedTypeUtils.h
@@ -61,7 +61,8 @@ enum BfMethodNameFlags : uint8
 	BfMethodNameFlag_ResolveGenericParamNames = 1,
 	BfMethodNameFlag_OmitTypeName = 2,
 	BfMethodNameFlag_IncludeReturnType = 4,
-	BfMethodNameFlag_OmitParams = 8
+	BfMethodNameFlag_OmitParams = 8,
+	BfMethodNameFlag_IncludeMut = 0x10
 };
 
 enum BfGetMethodInstanceFlags : uint16