I borrowed a Scott No Punch from our shop....It's totally amazing! You couldn't punch the trigger if you tried! Punch it, it won't go off. You've got to be smooth with this thing, IF you set it up right. Like you said, it's got an amazingly soft trigger on it.

I also like the idea of the thumb trigger. In fact, I'm kind of in the same quandry as you....I am looking into both of these styles as well. I am kind of leaning toward the thumb trigger because you can fire it using pure back tension.....I haven't messed w/ them much though...