Hey New Guy :D
i bouhgt myself some Ledges this year too. im about 6'1 or 189 cm and ski the 176cm for park only. These Skis are complete park skis and they are 100% symetrical so you should mount them at dead center. you will be able to ski maybe 10-20 cm of pow. but it will not be that great :D
for your weight and your height i would suggest you the 169 Ledges. it will be good for park (where these skis are supposed to be skied) to have them a bit shorter.
just my two cents. if you have any other questions post in here or shoot me a PM i can give you a quick review about the skis :D
i got the 10/11 model (the black one with the rollercoaster-thingy on them) besides this the 09/10 are basically the same ski just with other graphics.
sounds strange that you cant get them in 169cm. for me it was really hard to grab a pair of 176 because they only sell 169 here :D
were are you from? maybe i could help you (im from Europe/Germany)
I got the k2 domains instead and they are awesome!