diff --git a/.gitea/workflows/triggers/publish-fixturenet-eth-images b/.gitea/workflows/triggers/publish-fixturenet-eth-images
index 4648289..9e4c9aa 100644
--- a/.gitea/workflows/triggers/publish-fixturenet-eth-images
+++ b/.gitea/workflows/triggers/publish-fixturenet-eth-images
@@ -1,4 +1,2 @@
 # Change this file to trigger the job publish-fixturenet-eth-images.yml
-Trigger
-Trigger
-Trigger
+4
\ No newline at end of file
diff --git a/stack-orchestrator/compose/docker-compose-fixturenet-plugeth.yml b/stack-orchestrator/compose/docker-compose-fixturenet-plugeth.yml
index 88cc25c..ffdc01c 100644
--- a/stack-orchestrator/compose/docker-compose-fixturenet-plugeth.yml
+++ b/stack-orchestrator/compose/docker-compose-fixturenet-plugeth.yml
@@ -27,7 +27,7 @@ services:
       CERC_ALLOW_UNPROTECTED_TXS: ${CERC_ALLOW_UNPROTECTED_TXS:-false}
     env_file:
       - ../config/fixturenet-eth/fixturenet-eth.env
-      - ../config/fixturenet-eth/statediff.env
+      - ../config/fixturenet-plugeth/statediff.env
     image: cerc/fixturenet-plugeth-plugeth:local
     volumes:
       - fixturenet_plugeth_geth_1_data:/root/ethdata
diff --git a/stack-orchestrator/config/fixturenet-eth/fixturenet-eth.env b/stack-orchestrator/config/fixturenet-eth/fixturenet-eth.env
index 9943882..156e5c2 100644
--- a/stack-orchestrator/config/fixturenet-eth/fixturenet-eth.env
+++ b/stack-orchestrator/config/fixturenet-eth/fixturenet-eth.env
@@ -14,5 +14,5 @@ ENR_URL="http://fixturenet-eth-bootnode-lighthouse:3000/bootnode/enr.dat"
 CERC_GETH_VMODULE="rpc/*=5"
 CERC_GETH_VERBOSITY=${CERC_GETH_VERBOSITY:-3}
 
-# Used by Lighthouse
-SECONDS_PER_ETH1_BLOCK=${SECONDS_PER_ETH1_BLOCK:-3}
+# --debug-level
+DEBUG_LEVEL=${LIGHTHOUSE_DEBUG_LEVEL:-info}
diff --git a/stack-orchestrator/config/fixturenet-eth/statediff.env b/stack-orchestrator/config/fixturenet-plugeth/statediff.env
similarity index 100%
rename from stack-orchestrator/config/fixturenet-eth/statediff.env
rename to stack-orchestrator/config/fixturenet-plugeth/statediff.env
diff --git a/stack-orchestrator/container-build/cerc-fixturenet-eth-lighthouse/genesis/cl/build_cl.sh b/stack-orchestrator/container-build/cerc-fixturenet-eth-lighthouse/genesis/cl/build_cl.sh
index 5157b38..1130cb7 100755
--- a/stack-orchestrator/container-build/cerc-fixturenet-eth-lighthouse/genesis/cl/build_cl.sh
+++ b/stack-orchestrator/container-build/cerc-fixturenet-eth-lighthouse/genesis/cl/build_cl.sh
@@ -44,6 +44,11 @@ lcli \
   --interop-genesis-state \
   --force
 
+# Patch the spec with settings not supported by lcli
+sed -i "/^SHARD_COMMITTEE_PERIOD:/s/:.*/: $SHARD_COMMITTEE_PERIOD/" $TESTNET_DIR/config.yaml
+sed -i "/^MIN_VALIDATOR_WITHDRAWABILITY_DELAY:/s/:.*/: $MIN_VALIDATOR_WITHDRAWABILITY_DELAY/" $TESTNET_DIR/config.yaml
+sed -i "/^MAX_SEED_LOOKAHEAD:/s/:.*/: $MAX_SEED_LOOKAHEAD/" $TESTNET_DIR/config.yaml
+
 echo Specification and genesis.ssz generated at $TESTNET_DIR.
 echo "Generating $VALIDATOR_COUNT validators concurrently... (this may take a while)"
 
diff --git a/stack-orchestrator/container-build/cerc-fixturenet-eth-lighthouse/genesis/cl/vars.env b/stack-orchestrator/container-build/cerc-fixturenet-eth-lighthouse/genesis/cl/vars.env
index d7eda59..f790e4c 100644
--- a/stack-orchestrator/container-build/cerc-fixturenet-eth-lighthouse/genesis/cl/vars.env
+++ b/stack-orchestrator/container-build/cerc-fixturenet-eth-lighthouse/genesis/cl/vars.env
@@ -38,6 +38,13 @@ SECONDS_PER_SLOT=${SECONDS_PER_SLOT:-3}
 # Seconds per Eth1 block
 SECONDS_PER_ETH1_BLOCK=${SECONDS_PER_ETH1_BLOCK:-1}
 
+# Min epochs between validator activation and exit
+SHARD_COMMITTEE_PERIOD=2
+# Min epochs between validator exit and withdrawal
+MIN_VALIDATOR_WITHDRAWABILITY_DELAY=1
+# Delay for validator activation/exit
+MAX_SEED_LOOKAHEAD=1
+
 # Command line arguments for validator client
 VC_ARGS=${VC_ARGS:-""}
 
@@ -53,6 +60,3 @@ ETH1_TTD=${ETH1_TTD:-`cat $ETH1_GENESIS_JSON | jq -r '.config.terminalTotalDiffi
 ETH1_DEPOSIT_CONTRACT_ADDRESS=${ETH1_DEPOSIT_CONTRACT_ADDRESS:-`cat $ETH1_CONFIG_YAML | grep 'deposit_contract_address' | awk '{ print $2 }' | sed 's/"//g'`}
 ETH1_DEPOSIT_CONTRACT_BLOCK=${ETH1_DEPOSIT_CONTRACT_BLOCK:-0x0}
 SUGGESTED_FEE_RECIPIENT=`cat ../build/el/accounts.csv | head -1 | cut -d',' -f2`
-
-# --debug-level
-DEBUG_LEVEL=${LIGHTHOUSE_DEBUG_LEVEL:-info}