mobile

I am wondering if the following method will allow root while keeping OTA:

1) Unlock with HTCDev
2) Only boot into TWRP (not flash it as permanent recovery): Fastboot boot twrp.img
3) Once booted into TWRP, install supersu

Then should OTA updates work, after which you only have to repeat steps 2 & 3?

My intent is to just get root access for apps like WiFi Tether Router.