dont know anything about the airrush but you cant go wrong with the boxer.
greg

you will progress from the dna too quickly to warrant buying one.
better option is the flow. or as you said the boxer, havent tried the boxer but it looks alright although it comes standard with 20m lines so im guessing its not going to fly as well with 25-27
once youve had your lessons the dna is a bit pointless and like most new kites excessively expensive.
out of th etwo options the boxer stands out only because its going to do what you want for your first season and longer were as dna as said before is designed for use in schools ect.