diff --git a/roles/calibre/tasks/debs.yml b/roles/calibre/tasks/debs.yml
index 797b2bb57..23504f511 100644
--- a/roles/calibre/tasks/debs.yml
+++ b/roles/calibre/tasks/debs.yml
@@ -28,8 +28,9 @@
 #  when: is_rpi and internet_available
 
 - name: Upgrade to latest Calibre using .deb's from testing (rpi)
-  #command: scripts/calibre-install-latest-rpi-plus.sh    # NEC FOR Calibre 3.27.1 on 2018-07-22 (#948 -> PR #950) THO NOT BOOTABLE IN Zero W (#952).  Similar to Calibre 3.24.x & 3.25 in June 2018, which had used calibre-install-packages.sh then Debian's own calibre-install-latest.sh
-  command: scripts/calibre-install-latest-rpi.sh    # WORKS for Calibre 3.28 on 2018-07-26 (PR #971).  Likewise for Calibre 3.26.x
+  #command: scripts/calibre-install-latest-rpi-plus.sh    # WORKS for Calibre 3.27.1 on 2018-07-22 (#948 -> PR #950) THO NOT BOOTABLE IN Zero W (#952).  Similar to Calibre 3.24.x & 3.25 in June 2018, which had used calibre-install-packages.sh then Debian's own calibre-install-latest.sh
+  #command: scripts/calibre-install-latest-rpi.sh    # WORKS for Calibre 3.28 on 2018-07-26 (PR #971).  Likewise for Calibre 3.26.x
+  command: scripts/calibre-install-latest.sh    # REQUIRED for Calibre 3.29 on 2018-08-21 (PR #1015), as all above strategies failed (only script that was not attempted: Sid-like calibre-install-unstable.sh).  CLARIF: RESULTING microSD's ARE NOT BOOTABLE IN Zero W (#952)
   when: is_rpi and internet_available
 
 - name: Upgrade to Calibre testing .deb's - target Ubuntu 16.04 (not rpi and not ubuntu_18)
diff --git a/scripts/calibre-install-latest-rpi-plus.sh b/scripts/calibre-install-latest-rpi-plus.sh
index cf9d5114c..7237f2b2b 100755
--- a/scripts/calibre-install-latest-rpi-plus.sh
+++ b/scripts/calibre-install-latest-rpi-plus.sh
@@ -12,7 +12,8 @@
 # Thanks to Jerry Vonau (https://github.com/jvonau) who made this critical
 # breakthrough possible!
 #
-# SEE COMMENTS AT THE TOP OF scripts/calibre-install-packages.sh
+# Might break future updates; you have been warned.
+# SEE NOTES AT TOP OF scripts/calibre-install-packages.sh
 
 export DEBIAN_FRONTEND=noninteractive
 
diff --git a/scripts/calibre-install-latest-rpi.sh b/scripts/calibre-install-latest-rpi.sh
index 869a4b64f..607592bbb 100755
--- a/scripts/calibre-install-latest-rpi.sh
+++ b/scripts/calibre-install-latest-rpi.sh
@@ -3,7 +3,8 @@
 # Thanks to Jerry Vonau (https://github.com/jvonau) who made this critical
 # breakthrough possible!
 #
-# SEE COMMENTS AT THE TOP OF scripts/calibre-install-packages.sh
+# Might break future updates; you have been warned.
+# SEE NOTES AT TOP OF scripts/calibre-install-packages.sh
 
 export DEBIAN_FRONTEND=noninteractive
 # Prepares to update to latest from raspbian testing
diff --git a/scripts/calibre-install-latest.sh b/scripts/calibre-install-latest.sh
index c8bf11ebd..363866335 100755
--- a/scripts/calibre-install-latest.sh
+++ b/scripts/calibre-install-latest.sh
@@ -1,9 +1,19 @@
 #!/bin/bash
 
+# Calibre 3.29 requires this approach, to overcome error:
+#
+#    calibre-bin : Depends: qtbase-abi-5-10-0 but it is not installable
+#   E: Unable to correct problems, you have held broken packages.
+#
+# Above error proved insurmountable when trying most all scripts in /opt/iiab/iiab/scripts -- even those that DID solve this error:
+#
+#    calibre : Depends: python-pyqt5 (>= 5.11.2+dfsg-1+b1)
+
 # Thanks to Jerry Vonau (https://github.com/jvonau) who made this critical
 # breakthrough possible!
 #
-# SEE COMMENTS AT THE TOP OF scripts/calibre-install-packages.sh
+# Might break future updates; you have been warned.
+# SEE NOTES AT TOP OF scripts/calibre-install-packages.sh
 
 export DEBIAN_FRONTEND=noninteractive
 # Drags in stock desktop dependencies without too much from testing below
diff --git a/scripts/calibre-install-unstable.sh b/scripts/calibre-install-unstable.sh
index 333985103..ab510bc5d 100755
--- a/scripts/calibre-install-unstable.sh
+++ b/scripts/calibre-install-unstable.sh
@@ -11,6 +11,7 @@
 #   http://archive.raspbian.org/raspbian/pool/main/c/calibre/
 #
 # Might break future updates; you have been warned.
+# SEE NOTES AT TOP OF scripts/calibre-install-packages.sh
 
 export DEBIAN_FRONTEND=noninteractive
 # Prepares to update to latest from unstable