I agree. I had a look at the PCTools forum, there is an interesting last post to a thread "Has Threatfire development stopped now?" where the user is fairly scathing about the performance of the more recent TF 4.# versions, and has gone to running 3.5, which he/she finds very satisfactory, and the comment was "...closer to the pure Cyberhawk..".I thought that was fairly telling.
Shame, innit?