Originally Posted by
Sol
I'm not sure that semiduality is better, what is pointed by "mb".
Semiduality has a lack of support for 2nd region and different valued 2 functions. So there are + and - for those IR which are hard to compare with the existing theory and without experimental data.
Generally, activators are said as 2nd after a duality. By the theory semiduality is among best.
In my experience I prefered semiduals (existed pretty activators never got my significant feelings). But it's not enough to be assured about common preference and the degree of the difference.