Rooted Stock Upgrade with TWRP
I bought a HTC Evo 4G LTE on ebay and it came with TWRP recovery, I was able to use the rooted "stock" rom Stock_3.15.651.16_Deodex.zip by viperboy for EVO LTE in the following link: Update Sprint HTC Evo 4G LTE to Stock Android 4.1.1 Pre-Rooted Jelly Bean Firmware [hope it's okay to post the page]. Where would I be able to find out if he updates the rooted "stock" with the new Sprint 3.16.651.3?
Re: Rooted Stock Upgrade with TWRP
Found my answer from the true source after I googled:
HTC EVO 4G LTE Android Development - xda-developers