I have Adventure Brass and Trailer Brass. I don't use AB for much since I have a few brass libraries that cover that ground better (Caspian sits better in its place, imo). Now Trailer Brass... I don't have ANYTHING else that does what that does. And for anyone who has Forzo and was let down by the lack of sizzle and growl in the higher brass (it seems to have plenty in the lows though) , you can layer a little TB to get that back and it works reaaaally well.