Hey, so I have two TWRP tests to see if we can get it booting off the external SD card. I can do another test if these don't work. Try the one titled "TWRP_unpack-repack-test.zip" first and "TWRP_changed_fstab_test.zip" second if the first one doesn't work. So inside those zips are two folders, one has the ST8 TWRP and the other has the ST10 TWRP, so make sure you grab the correct one. Just take the "uImage_recovery" and place it on the external SD card for the test. Thanks again for doing the testing. Hopefully I can get this working for everyone.