I tried this method twenty years ago, only because I wasn't at university yet, and had never read the scientific publications using silver nitrate and STS solution.

I would figure I got about 75-80% female seeds, but the rest were shemales. Hermies are natural, shemales are induced. In 1993, I read about the STS method and got 100% females everytime. Now my sprouting/seedling/vegging space is always a small, hot, humid box powered by daylight flo tubes, and I get better than 90% females from the strains I dare to use.

I figure the aspirin method is better than wasting time light/nute/water/heat stressing to get shemales.