I’ve always advocated that there is enough calf work with speed, drills and plyos to make separate calf work, not only unnecessary, but counterproductive.
Apparently the second guy agrees with me that the first guy doesn’t know what he’s talking about.
I don’t mind when a guy is wrong, but when he backs up his arguement with bogus facts, he drags others, without access to the real facts, down with him.
If you really want to know what is actually done with World Record sprinters, instead of getting distorted rumours why not get your information from this site, which has produced World Records?