Funny how things change. Seems like forever, bowhunters shot 125's or maybe 130's. Only the "heavy bow" guys would shoot the 160 snuffer.
Now with the newfangled carbon shafts, everyone add point weight instead of going to ash or some other dense wood.
IMO, the 125's are the 30-30 cartridge of broadheads. 100 years from now of course that won't be true but up until 4 or 5 years ago, they were the norm. Still are for me. I don't see where I gain anything with a heavier broadhead as long as my bow is tuned properly.