So I got my MSR ready.
1. Can I use a gift card, old personal cc, any other cards and rewrite the tracks?
2. I’m in Canada Ontario can I use BINs from the states?
3. So I short out the emv chip then I can get it to swipe right?
4. Do BINs matter if I’m using it to swipe?
5. Do I need to rewrite the tracks to use for different stores?

From what I know you short out the 201 chip or you use nail polisher or clear coat.
I have a buddy who uses old personal credit cards he just clear the tracks an reuse the same cards just put his dumps on there. It’s a proven method I seen him in action.
</br>

Also my personal old cc has contactless payment. So every time I swipe it just gets onto that -.-

You need to take out the RFID chip in that contactless card. or better dont use it as the RFID can reveal your identity.
5. Do I need to rewrite the tracks to use for different stores?
No you dont have to rewrite card for diff stores, the dumps stay in msg strip till you rewrite it or erase it using msr.
</br></br></br></br>