diff --git a/sys/vane/ames.hoon b/sys/vane/ames.hoon
index 4cd12228b8..f0562c67e2 100644
--- a/sys/vane/ames.hoon
+++ b/sys/vane/ames.hoon
@@ -70,7 +70,6 @@
     ++  as                                              ::    as:go
       |_  [our=ship saf=sufi]                           ::  per server
       ++  lax                                           ::    lax:as:go
-        =|  rov=(unit lane)                             ::  maybe lane change
         |_  [her=ship dur=dore]                         ::  per client
         ++  cluy                                        ::    cluy:lax:as:go
           ^-  [lyf=life cub=acru]                       ::  client crypto
@@ -139,26 +138,6 @@
                 [~ ryn]
               lun.wod.dur
             [~ ryn]
-          ::
-              rov
-            |-  ^-  (unit lane)
-            ::  XX jael scry
-            ::
-            ?:  ?|  !=(our (^sein:title her))
-                    ?=(?(%earl %pawn) (clan:title her))
-                ==
-              ~
-            ?-  ryn
-              [%if *]  ?.  ?=([~ %if *] lun.wod.dur)
-                         `ryn
-                       ?:(=(r.u.lun.wod.dur r.ryn) ~ `ryn)
-              ::
-              [%ix *]  ?.  ?=([~ %ix *] lun.wod.dur)
-                         `ryn
-                       ?:(=(r.u.lun.wod.dur r.ryn) ~ `ryn)
-              ::
-              [%is *]  ?~(q.ryn ~ $(ryn u.q.ryn))
-            ==
           ==
         ::
         ++  wist                                        ::    wist:lax:as:go
@@ -1162,10 +1141,8 @@
           ==
         ::
         ++  zank                                        ::    zank:ho:um:am
-          =?  bin  ?=(^ rov.diz)
-              [[%maze her u.rov.diz] bin]
           %=  +>.$                                      ::  resolve
-            gus      (nux:gus diz(rov ~))
+            gus      (nux:gus diz)
             wab.weg  (~(put by wab.weg) her bah(sop abet:puz))
           ==
         ::
@@ -1304,11 +1281,6 @@
       :_  fox
       :~  [s.bon %give %woot q.p.bon r.bon]
       ==
-    ::
-        %maze
-      :_  fox
-      %+  turn  ~(tap in ten.fox)
-      |=(hen=duct [hen %give %rove p.bon q.bon])
     ::
         %mead  :_(fox [[hen [%give %hear p.bon q.bon]] ~])
         %milk
@@ -1460,14 +1432,6 @@
         ::
             %kick
           (~(kick am [now fox(hop p.kyz) ski]) hen)
-        ::
-            %tend
-          :: XX exclude comets and moons? and planets?
-          :: ?>  &(?=(^ hen) ?=([@ @ *] i.hen))
-          :: =/  who=@p  (slav %p i.t.i.hen)
-          :: ?:  ?=((%earl %pawn) (clan:title who))
-          ::   [~ fox]
-          [~ fox(ten (~(put in ten.fox) hen))]
         ::
             %nuke
           :-  ~
diff --git a/sys/vane/gall.hoon b/sys/vane/gall.hoon
index a2c0f0ab53..5004f71e83 100644
--- a/sys/vane/gall.hoon
+++ b/sys/vane/gall.hoon
@@ -1241,7 +1241,6 @@
         $perm  `%c
         $rule  `%e
         $serv  `%e
-        $tend  `%a
         $them  `%e
         $wait  `%b
         $want  `%a
diff --git a/sys/zuse.hoon b/sys/zuse.hoon
index 4455144394..b82a4d0d82 100644
--- a/sys/zuse.hoon
+++ b/sys/zuse.hoon
@@ -494,7 +494,6 @@
       $%  {$hear p/lane q/@}                            ::  receive packet
           {$mack p/(unit tang)}                         ::  
           {$mass p/mass}                                ::  memory usage
-          {$rove p/ship q/lane}                         ::  lane change
           {$send p/lane q/@}                            ::  transmit packet
           {$turf p/(list turf)}                         ::  bind to domains
           {$woot p/ship q/coop}                         ::  reaction message
@@ -526,7 +525,6 @@
           {$kick p/@da}                                 ::  wake up
           {$nuke p/@p}                                  ::  toggle auto-block
           {$sunk p=ship q=life}                         ::  report death
-          {$tend ~}                                     ::  watch lane changes
           {$wake ~}                                     ::  timer activate
           {$wegh ~}                                     ::  report memory
           {$west p/sack q/path r/*}                     ::  network request
@@ -570,7 +568,6 @@
         {$bock ~}                                       ::  bind to domains
         {$brew ~}                                       ::  request domains
         {$cake p/sock q/soap r/coop s/duct}             ::  e2e message result
-        {$maze p/ship q/lane}                           ::  lane change
         {$mead p/lane q/rock}                           ::  accept packet
         {$milk p/sock q/soap r/*}                       ::  e2e pass message
         {$ouzo p/lane q/rock}                           ::  transmit packet
@@ -613,7 +610,6 @@
         bad/(set @p)                                    ::  bad ships
         ton/town                                        ::  security
         zac/(map ship corn)                             ::  flows by server
-        ten/(set duct)                                  ::  watch lanes
     ==                                                  ::
   ++  hand  @uvH                                        ::  128-bit hash
   ++  lane                                              ::  packet route