diff --git a/dataflow_neuro/coders.act b/dataflow_neuro/coders.act
index 7439bc8..dee5d8e 100644
--- a/dataflow_neuro/coders.act
+++ b/dataflow_neuro/coders.act
@@ -190,7 +190,7 @@ namespace tmpl {
 
 			// Acknowledge pull down time
 
-			// Pull UPs on the reqB lines by synapses (easier to invert).
+			// Pull DOWNs on the reqB lines by synapses (easier to invert).
 			bool _out_reqsB[Nx], _out_acksB[Nx]; // The vertical output ack lines from each syn.
 			PULLDOWN2_X4 req_pulldowns[Nx*Ny];
 			pint index;
@@ -215,10 +215,18 @@ namespace tmpl {
 
 			// req-ack buffers
 			sigbuf<Ny> req_bufs[Nx];
+			delay_fifo<10> more_delays[Nx];
 			(i:Nx:
-				req_bufs[i].in = _out_reqsB[i];
+				more_delays[i].in = _out_reqsB[i];
+				more_delays[i].supply = supply;
+
+				// req_bufs[i].in = _out_reqsB[i];
+				req_bufs[i].in = more_delays[i].out;
 				req_bufs[i].out[0] = _out_acksB[i]; // DANGER DANGER
 				req_bufs[i].supply = supply;
+
+
+
 			)
 
 			// Line end pull UPs (triggered once synapse reqs removed)
@@ -227,11 +235,11 @@ namespace tmpl {
 			PULLUP_X4 pu[Nx]; // TODO probably replace this with variable strength PU
 			AND2_X1 pu_ANDs[Nx];
 			(i:Nx:
-				pu_dlys[i].in = _out_acksB[i];
+				pu_dlys[i].in = d_dr_x.out[i];
 				pu_dlys[i].supply = supply;
 
-				pu_ORs[i].a = pu_dlys[i].out;
-				pu_ORs[i].b = d_dr_x.out[i];
+				pu_ORs[i].a = _out_acksB[i];
+				pu_ORs[i].b = pu_dlys[i].out;
 				pu_ORs[i].vdd = supply.vdd;
 				pu_ORs[i].vss = supply.vss;