WSJT-X co-developer Joe Taylor, K1JT, recently expressed puzzlement over the use of FT8 in contests -rather than FT4, which was designed for contesting

Taylor offered the comment in the Mt. Airy VHF Society's October 2020 Cheese Bits, regarding the September ARRL VHF Contest. Taylor said a large fraction of stations that are worked with FT8 are much more than 3 dB above the FT4 decoding threshold.

Taylor also remarked, "In my 80th year, I can no longer call on my past stamina for contesting."

ARRL Letter October 22 - http://www.arrl.org/arrlletter

Download the free WSJT-X software which supports FT4, FT8 and other digital modes - https://physics.princeton.edu/pulsar/K1JT/wsjtx.html