theyre 173 Atomic Panics and they rip. trust me. plus they supposedly 'ski longer' than they are, as in they have the control of a longer ski. i love them.
my 183s are Head Monster im82's which arent twin tips. they can carve through absolutely anything, but it makes them difficult to maneuver around suddenly.
but yeah my k2 silencers ive had for 5 years are too short haha. im thinking of buying my friend's 4FRNT TNKS @ 175 for cheap. im not a super park skiier anyway so i think theyll do