diff --git a/chainstate/client_test.go b/chainstate/client_test.go
index cf9efe4a..fff6e1ed 100644
--- a/chainstate/client_test.go
+++ b/chainstate/client_test.go
@@ -103,16 +103,14 @@ func TestNewClient(t *testing.T) {
 		assert.Equal(t, TestNet, c.Network())
 	})
 
-	t.Run("custom network - stn", func(t *testing.T) {
-		c, err := NewClient(
+	t.Run("no provider when using minercraft with customNet", func(t *testing.T) {
+		_, err := NewClient(
 			context.Background(),
 			WithNetwork(StressTestNet),
 			WithMinercraft(&MinerCraftBase{}),
-			WithFeeUnit(DefaultFee()),
+			WithFeeUnit(MockDefaultFee),
 		)
-		require.NoError(t, err)
-		require.NotNil(t, c)
-		assert.Equal(t, StressTestNet, c.Network())
+		require.Error(t, err)
 	})
 
 	t.Run("unreacheble miners", func(t *testing.T) {
diff --git a/chainstate/definitions.go b/chainstate/definitions.go
index 970dff97..25d180eb 100644
--- a/chainstate/definitions.go
+++ b/chainstate/definitions.go
@@ -2,8 +2,6 @@ package chainstate
 
 import (
 	"time"
-
-	"github.com/BuxOrg/bux/utils"
 )
 
 // Chainstate configuration defaults
@@ -50,16 +48,6 @@ const (
 	ProviderNone            = "none"            // No providers (used to indicate no providers)
 )
 
-// DefaultFee is used when a fee has not been set by the user
-// This default is currently accepted by all BitcoinSV miners (50/1000) (7.27.23)
-// Actual TAAL FeeUnit - 1/1000, GorillaPool - 50/1000 (7.27.23)
-func DefaultFee() *utils.FeeUnit {
-	return &utils.FeeUnit{
-		Satoshis: 1,
-		Bytes:    1000,
-	}
-}
-
 // BlockInfo is the response info about a returned block
 type BlockInfo struct {
 	Bits              string         `json:"bits"`
diff --git a/model_draft_transactions.go b/model_draft_transactions.go
index b4f5ff21..ada89589 100644
--- a/model_draft_transactions.go
+++ b/model_draft_transactions.go
@@ -9,7 +9,6 @@ import (
 	"math/big"
 	"time"
 
-	"github.com/BuxOrg/bux/chainstate"
 	"github.com/BuxOrg/bux/utils"
 	"github.com/bitcoinschema/go-bitcoin/v2"
 	"github.com/libsv/go-bk/bec"
@@ -63,11 +62,7 @@ func newDraftTransaction(rawXpubKey string, config *TransactionConfig, opts ...M
 	}
 
 	if config.FeeUnit == nil {
-		if c := draft.Client(); c != nil {
-			draft.Configuration.FeeUnit = c.Chainstate().FeeUnit()
-		} else {
-			draft.Configuration.FeeUnit = chainstate.DefaultFee()
-		}
+		draft.Configuration.FeeUnit = draft.Client().Chainstate().FeeUnit()
 	}
 	return draft
 }
diff --git a/model_draft_transactions_test.go b/model_draft_transactions_test.go
index 19e526a6..e4e1e802 100644
--- a/model_draft_transactions_test.go
+++ b/model_draft_transactions_test.go
@@ -45,7 +45,9 @@ func TestDraftTransaction_newDraftTransaction(t *testing.T) {
 	t.Run("valid config", func(t *testing.T) {
 		expires := time.Now().UTC().Add(defaultDraftTxExpiresIn)
 		draftTx := newDraftTransaction(
-			testXPub, &TransactionConfig{}, New(),
+			testXPub, &TransactionConfig{
+				FeeUnit: chainstate.MockDefaultFee,
+			}, New(),
 		)
 		require.NotNil(t, draftTx)
 		assert.NotEqual(t, "", draftTx.ID)
@@ -53,7 +55,7 @@ func TestDraftTransaction_newDraftTransaction(t *testing.T) {
 		assert.WithinDurationf(t, expires, draftTx.ExpiresAt, 1*time.Second, "within 1 second")
 		assert.Equal(t, DraftStatusDraft, draftTx.Status)
 		assert.Equal(t, testXPubID, draftTx.XpubID)
-		assert.Equal(t, *chainstate.DefaultFee(), *draftTx.Configuration.FeeUnit)
+		assert.Equal(t, *chainstate.MockDefaultFee, *draftTx.Configuration.FeeUnit)
 	})
 }
 
@@ -62,7 +64,9 @@ func TestDraftTransaction_GetModelName(t *testing.T) {
 	t.Parallel()
 
 	t.Run("model name", func(t *testing.T) {
-		draftTx := newDraftTransaction(testXPub, &TransactionConfig{}, New())
+		draftTx := newDraftTransaction(testXPub, &TransactionConfig{
+			FeeUnit: chainstate.MockDefaultFee,
+		}, New())
 		require.NotNil(t, draftTx)
 		assert.Equal(t, ModelDraftTransaction.String(), draftTx.GetModelName())
 	})
@@ -76,6 +80,7 @@ func TestDraftTransaction_getOutputSatoshis(t *testing.T) {
 				ChangeDestinations: []*Destination{{
 					LockingScript: testLockingScript,
 				}},
+				FeeUnit: chainstate.MockDefaultFee,
 			},
 		)
 		changSatoshis, err := draftTx.getChangeSatoshis(1000000)
@@ -91,6 +96,7 @@ func TestDraftTransaction_getOutputSatoshis(t *testing.T) {
 				ChangeDestinations: []*Destination{{
 					LockingScript: testLockingScript,
 				}},
+				FeeUnit: chainstate.MockDefaultFee,
 			},
 		)
 		changSatoshis, err := draftTx.getChangeSatoshis(1000000)
@@ -107,6 +113,7 @@ func TestDraftTransaction_getOutputSatoshis(t *testing.T) {
 				}, {
 					LockingScript: testTxInScriptPubKey,
 				}},
+				FeeUnit: chainstate.MockDefaultFee,
 			},
 		)
 		changSatoshis, err := draftTx.getChangeSatoshis(1000001)
@@ -127,6 +134,7 @@ func TestDraftTransaction_getOutputSatoshis(t *testing.T) {
 				}, {
 					LockingScript: testTxScriptPubKey1,
 				}},
+				FeeUnit: chainstate.MockDefaultFee,
 			},
 		)
 		satoshis := uint64(1000001)