I don't know who is in charge of this list, but I went ahead and ordered the bit from HBI, and drilled mine out today. So now I have a bit to pass on to others. I also have a replacement machine screw, since this drilling process tends to booger up the stock screw. Contact me and we can make arrangements.
By the way, the HB bit chews through that weld like butter. I tried a HSS bit and it was a real
PITA. The old saying applies, "Right tool for the right job"