yes sir.
i have done this prior to TAF with betanol.
doing this with TAF is a recent deveolpement !
i guess you dont nesessarily have to use TAF, but something that gets them intensly aware of what it is they are reacting over*.*
if they werent hitting before the extra spray, i doubt your going to see fireworks…but the TAF trick is my new fav. for intensifying 
one thing i highly recommend is to carry to-gos of what works for you in the big bottles.
most of the time i spray and forget about it until things become exaggerated and easy to spot, but then i wish i had something to freshen it up so i carry my to-gos in my back pocket everywhere.
if you try this steveo, will you please post so that i can see how that works for you?