Question about ski lenght. I weigh 140 lbs and am 5'8". I am wondering whether I should get the 170s or 178. I ski on narrow (100,67,88) 177 now and they are fine ( would not want to go shorter with this ski for sure). I have an advanced ski ability and ski mainly in the backcounty and want a ski for all conditions that is still light. BTW I am also swithcing from tele to AT.I would be inclined to get the 178's but it seems strange that someone of my size would take the biggest size they make. Am I missing something? Will someone over 6ft with advanced ski ability just have to choose another model that comes in a bigger size?

Tech Specs:

Lengths:

156cm, 163cm, 170cm, 178cm 

Dimensions:

[156cm] 111 / 78 / 98mm; [163, 170cm] 113 / 78 / 100mm; [178cm] 113 / 80 / 100mm 

Turn Radius:

[156cm] 11.6m; [163cm] 13.1m; [170cm] 14m; [178cm] 15.6m 

Core Material:

Paulownia and beechwood 

Base:

Sintered PE 

Tail:

Flat 

Binding System:

No 

Binding Included:

No 

Weight:

[156cm] 2lb 8oz (1150g); [163cm] 2lb 11oz (1230g); [170cm] 2lb 14oz (1320g); [178cm] 3lb 1oz (1390g) 

Recommended Use:

Alpine touring, ski mountaineering 

Manufacturer Warranty:

1 Year 

Country of Origin:

Austria