diff --git a/new_flow_logic/abm_register.lua b/new_flow_logic/abm_register.lua
index c1b2d7d..d8bb6cc 100644
--- a/new_flow_logic/abm_register.lua
+++ b/new_flow_logic/abm_register.lua
@@ -12,6 +12,25 @@ local flowlogic = pipeworks.flowlogic
 -- DISCUSS: should it be possible later on to raise the the rate of ABMs, or lower the chance?
 -- Currently all the intervals and chances are hardcoded below.
 
+
+
+-- register node list for the main logic function.
+-- see flowlogic.run() in abms.lua.
+--[[
+local register_flowlogic_abm = function(nodename)
+	minetest.register_abm({
+		nodenames = { nodename },
+		interval = 1,
+		chance = 1,
+		action = function(pos, node, active_object_count, active_object_count_wider)
+			flowlogic.run(pos, node)
+		end
+	})
+end
+]]
+
+
+
 -- register a node name for the pressure balancing ABM.
 -- currently this only exists as a per-node function to allow nodes to be registered outside pipeworks.
 local register_abm_balance = function(nodename)
diff --git a/new_flow_logic/flowable_node_registry_install.lua b/new_flow_logic/flowable_node_registry_install.lua
index 07001ef..5ebae61 100644
--- a/new_flow_logic/flowable_node_registry_install.lua
+++ b/new_flow_logic/flowable_node_registry_install.lua
@@ -79,6 +79,10 @@ register.output = function(nodename, upper, lower, outputfn)
 	if pipeworks.toggles.pressure_logic then
 		abmregister.output(nodename, lower, outputfn)
 	end
+	-- output ABM now part of main flow logic ABM to preserve ordering.
+	-- note that because outputs have to be a flowable first
+	-- (and the installation of the flow logic ABM is conditional),
+	-- registered output nodes for new_flow_logic is also still conditional on the enable flag.
 	regwarning("output node", nodename)
 end