diff --git a/build/bootstrap/bootstrappers.pi b/build/bootstrap/bootstrappers.pi
index 6cc357957..031804bbd 100644
--- a/build/bootstrap/bootstrappers.pi
+++ b/build/bootstrap/bootstrappers.pi
@@ -1 +1 @@
-/ip4/147.75.80.17/tcp/1347/p2p/12D3KooWB54edC5VTSaQpvcYbqG8XKAziP77Natf75CieA5xKDJx
+/ip4/147.75.80.17/tcp/1347/p2p/12D3KooWQ3NBPgTbXFRGnmpZUpYBSPJtwJfxuAFHBuWJ8LumCYf2
diff --git a/build/bootstrap/root.pi b/build/bootstrap/root.pi
index ab958ca34..f1f0ea3a5 100644
--- a/build/bootstrap/root.pi
+++ b/build/bootstrap/root.pi
@@ -1 +1 @@
-/ip4/147.75.80.29/tcp/1347/p2p/12D3KooWGdsbvHwscFKT1kqBeeooPe6EneJvjXzTrWSzwKhc1ssn
+/ip4/147.75.80.29/tcp/1347/p2p/12D3KooWGU8C1mFsEtz4bXmHUH3kQTnQnxVy8cigwGV94qCpYJw7
\ No newline at end of file
diff --git a/build/genesis/devnet.car b/build/genesis/devnet.car
index fd41976c8..a629514c1 100644
Binary files a/build/genesis/devnet.car and b/build/genesis/devnet.car differ
diff --git a/build/params.go b/build/params.go
index 9f8b40803..4f27abe60 100644
--- a/build/params.go
+++ b/build/params.go
@@ -30,7 +30,7 @@ const MaxVouchersPerDeal = 768 // roughly one voucher per 10h over a year
 // Consensus / Network
 
 // Seconds
-const BlockDelay = 6
+const BlockDelay = 30
 
 // Seconds
 const AllowableClockDrift = BlockDelay * 2
@@ -53,9 +53,9 @@ const ProvingPeriodDuration = 40
 // Blocks
 const PoSTChallangeTime = 20
 
-const PowerCollateralProportion = 20
-const PerCapitaCollateralProportion = 5
-const CollateralPrecision = 100
+const PowerCollateralProportion = 5
+const PerCapitaCollateralProportion = 1
+const CollateralPrecision = 1000
 
 // /////
 // Devnet settings
diff --git a/cmd/lotus-fountain/main.go b/cmd/lotus-fountain/main.go
index 40848dd5c..7f648145d 100644
--- a/cmd/lotus-fountain/main.go
+++ b/cmd/lotus-fountain/main.go
@@ -92,7 +92,7 @@ var runCmd = &cli.Command{
 
 		http.Handle("/", http.FileServer(rice.MustFindBox("site").HTTPBox()))
 		http.HandleFunc("/send", h.send)
-		http.HandleFunc("/sendcoll", h.sendColl)
+		http.HandleFunc("/mkminer", h.mkminer)
 
 		fmt.Printf("Open http://%s\n", cctx.String("front"))
 
@@ -137,32 +137,7 @@ func (h *handler) send(w http.ResponseWriter, r *http.Request) {
 	w.Write([]byte(smsg.Cid().String()))
 }
 
-func (h *handler) sendColl(w http.ResponseWriter, r *http.Request) {
-	to, err := address.NewFromString(r.FormValue("address"))
-	if err != nil {
-		w.WriteHeader(400)
-		w.Write([]byte(err.Error()))
-		return
-	}
-
-	coll, err := h.api.StatePledgeCollateral(h.ctx, nil)
-	if err != nil {
-		return
-	}
-
-	smsg, err := h.api.MpoolPushMessage(h.ctx, &types.Message{
-		Value: coll,
-		From:  h.from,
-		To:    to,
-
-		GasPrice: types.NewInt(0),
-		GasLimit: types.NewInt(1000),
-	})
-	if err != nil {
-		w.WriteHeader(400)
-		w.Write([]byte(err.Error()))
-		return
-	}
-
-	w.Write([]byte(smsg.Cid().String()))
+func (h *handler) mkminer(w http.ResponseWriter, r *http.Request) {
+	w.WriteHeader(400)
+	// todo
 }
diff --git a/cmd/lotus-storage-miner/init.go b/cmd/lotus-storage-miner/init.go
index 2ece8004d..59ff2e91a 100644
--- a/cmd/lotus-storage-miner/init.go
+++ b/cmd/lotus-storage-miner/init.go
@@ -224,7 +224,7 @@ func configureStorageMiner(ctx context.Context, api api.FullNode, addr address.A
 		Params:   enc,
 		Value:    types.NewInt(0),
 		GasPrice: types.NewInt(0),
-		GasLimit: types.NewInt(1000000),
+		GasLimit: types.NewInt(100000000),
 	}
 
 	smsg, err := api.MpoolPushMessage(ctx, msg)
@@ -292,7 +292,7 @@ func createStorageMiner(ctx context.Context, api api.FullNode, peerid peer.ID, c
 		Method: actors.SPAMethods.CreateStorageMiner,
 		Params: params,
 
-		GasLimit: types.NewInt(10000),
+		GasLimit: types.NewInt(10000000),
 		GasPrice: types.NewInt(0),
 	}
 
diff --git a/cmd/lotus-townhall/main.go b/cmd/lotus-townhall/main.go
index 0f7c058f0..54f5e91c5 100644
--- a/cmd/lotus-townhall/main.go
+++ b/cmd/lotus-townhall/main.go
@@ -18,7 +18,7 @@ import (
 	"github.com/filecoin-project/go-lotus/node/modules/lp2p"
 )
 
-const topic = "/fil/headnotifs/bafy2bzacecyfz2wfi5a6d4epch6nmedrlan3mdfswgv3y74an5aeqxaq5gqlu"
+const topic = "/fil/headnotifs/bafy2bzacea77zxnepp7wuqqgpj7xcw2ywwmmcmtrbjghhv4g2dildogpv6roi"
 
 var upgrader = websocket.Upgrader{
 	WriteBufferSize: 1024,
@@ -49,7 +49,7 @@ func main() {
 	}
 
 	pi, err := addrutil.ParseAddresses(ctx, []string{
-		"/ip4/147.75.80.29/tcp/1347/p2p/12D3KooWGdsbvHwscFKT1kqBeeooPe6EneJvjXzTrWSzwKhc1ssn",
+		"/ip4/147.75.80.29/tcp/1347/p2p/12D3KooWGU8C1mFsEtz4bXmHUH3kQTnQnxVy8cigwGV94qCpYJw7",
 	})
 	if err != nil {
 		panic(err)
diff --git a/scripts/deploy-miner.sh b/scripts/deploy-miner.sh
index 984f3d9b3..b1603aca6 100755
--- a/scripts/deploy-miner.sh
+++ b/scripts/deploy-miner.sh
@@ -2,6 +2,8 @@
 
 HOST=$1
 
+ssh "$HOST" '[ -e ~/.lotusstorage/token ]' && exit 0
+
 ssh "$HOST" 'lotus wallet new bls > addr'
 ssh "$HOST" 'curl http://147.75.80.29:777/sendcoll?address=$(cat addr)' &
 ssh "$HOST" 'curl http://147.75.80.29:777/sendcoll?address=$(cat addr)' &