I disagree on "way better" part, as simply copying 1500 strap will bring him to 25-26 MH/s range in most cases, while
custom strap mod is needed for 30+
Reliable, yes, nothing bad can happen by simply copy 1500 strap to above ones
Also, didn't previously notice, but links above are for original, non modded BIOS-es, so absolutely no help in this case
I'm sorry if you understand wrong, maybe I did't explain well
I just said that he could do the bios mod with the original bios of card, copying the straps, not download some bios and put on card, working with the original bios is better
The OP said
"I have a card Asus Strix Rx 570 8G with Samsung memory"And he put links of Asus and Sapphire bios, it's a recipe to brick the card if he flashes wrong bios