In that case, you might as well go all the way and get the Scubatools one because it's balanced and doesn't pop out when you turn the air on. I ended up buying it, but I'm not too convinced it's that more practical.
While we're on the subject, I've got a question to all gurus: I can get a very fine degree of tuning with the ST adjuster if I don't purge while I turn the knob. Theoretically, that could cut/damage the seat because it's pressed again the orifice. I haven't messed up anything so far, but I'd welcome any comments.
Edit
Btw, I don't think the Trident adjuster is cheaper.