Take some lessons from this -
Want a multi cart?
Multi carts are never 100% guaranteed, all have buggy games in one way or another, especially running through converters. If you have been through 2 multi carts from Paradise, both with the same issue, I'm guessing that's just the way it is everywhere, or its your setup, or you got sloppy with the dremel and jacked it up. I've seen converters have issues if there's not enough power to your system, maybe check there after you research other common issues.
Want original legit boards for other games?
If you are buying carts here, ebay, flea market, whatever... Look at the boards if you don't trust the person or don't want to risk it. Especially for higher priced MVS games, people will usually have no problem taking a few pics. It's super easy.
Want good advice from the community here?
Work on your communication skills so you don't confuse the fuck out of everyone and look like a jackass. Jackasses get donkey punched here.
Speaking of jackass...
I hope you didn't just say you bought 2 multiccarts from Paradise last year, dremeled the board edges, and finally now sent em back for a refund without contacting Paradise? Or telling them you modified the boards?
just yesterday mum posted them back to Hawaii im hoping i dont have any troubles in a refund as you guys may know the PCB's are a little wide and i used the Dremel to take a millimeter off each side of the connector the tamper stickers are still untouched.
what do you think im going to have troubles getting a refund ? based on using the Dremel to sand back a 1mm on the connector.............