Recovery Flashable Recoveries
If it's helpful to anyone else, I made a copy of TWRP and Philz recoveries that are flashable from a custom recovery. I do this because I find it easier to change the recovery I am using from a flashable zip rather than using adb or fastboot.
As a check I have flashed Philz from TWRP and TWRP from Philz on my own device without issue, but the usual disclaimer is still in effect. Whatever you do with this is not my fault.
Anyone is free to modify these zips for other recovery versions. All that needs to be done is to replace the "recovery.img" file inside of the zip.
Philz Recovery came from here:
And the TWRP recovery from here: