ARRMA Set Screw M4x6mm 4 ARA724406 Elec Car/Truck Replacement Parts

There is no reason I should be replacing this drive cup on my Typhon 6S V5. I am attempting to replace the rear diff housing with the Hot Racing aluminum one and got all of the way down to the last screw before I had a problem. The last screw was the set screw into this input shaft. Im using MIP drivers and no matter what I did I couldn’t get this set screw to remove without stripping it. Most will say it’s my fault and I don’t care about those people. If you can relate to my issue then know that the set screw is made with dirt cheap metal and will just round out no matter what you do. On top of my problem, I come here to order another since an Amazon seller is the sole seller there and jacked the price way up and I find that it’s still ridiculously expensive here. SMH, not happy about this at all.