Not for ria govt. - Wilson Combat Beavertail Grip Safety, Drop-In

Kept hanging up somewhere, was unable to install on am RIA govt. Every video online pointed to filing down the arm that engages the trigger. I filed down, checking along the way, and ended up filing down too much. Still doesnt engage properly. When i push in the beavertail, the hole doesn't line up where the thumb safety inserts. When the thumb safety is in, it doesnt go in all the way. I tried filing down the sides, and the actual dove tail part after i had ruined it. No dice there either. Don't know if i should order a new one, or try a different brand. None of my troubleshooting worked, so i'll try to figure it out and post back.