Most of these barbless dry hooks are aimed at and have been developed with competition anglers in mind rather than for holding onto trophy and specimen trout. Comp rules now stipulate barbless rather than debarbed flies, for catching as many small trout as possible I dare say all of the above mentioned hooks are absolutely fine.
If targetting lumps then use a decent hook of a gauge wire that you are happy with for the job and if you wish then crush the barb down. Problem solved, for me at least anyway!!
IMHO, debarbing is fine in terms of hook removal providing that the barb folds over and lies against the hook rather than snapping off. A snapped off barb is a pig to remove from tissue one folded flat against the hook comes easily, speaking from personal experience
Shit, just read Robs post and I actually agree with him (I must be ill)
Cheers
Ben