Yes N8000 is the twrp recovery for N8020. Yes pit is risky but if you read into how to do it and follow it you will be just fine. Sometimes a device may require running NAND Erase also (meaning checking the box in odin). The biggest problem with pit file is people not knowing and just running it as if they were getting a custom ROM.
Can u plz tell me a bit about pit flashing how to do that????One more thing i only able to find one pit file all over the google which is created by a user so can i use that pit file..
Thanks for ur time!