I tried doing that once to simulate TT extensions, but it didn't work since they aren't as long as the TT extensions and didn't give me any advantage - if anything I felt they limited front end control since they were closer to the stem. I was trying to get an idea of what TT extensions would feel like on long rides/touring rides with the idea of using them with a flat bar instead of drop bars. Never did get extensions, but I did change the drops to flat bars.