Replying to ON3P Jeffrey 108 171 vs 176

After lots of research, I’ve landed on the Jeffrey 108, only problem is that I have almost not experience riding ON3P before so I’m kind of torn between 171 and 176 length. With other skis I’ve ridden I’ve preferred closer to 170, but the Jeffreys as well as other ON3P’s seem to have more rocker than anything I’ve ridden. I’m 5’8, 180, and would consider myself an intermediate skier. I plan on using the skis for about 60/40 park/all mountain in the Midwest, (about 20-30 days a year) but 90/10 all mountain when I go out west (usually 10 ish days a year). Appreciate any/all feedback from other ON3P skiers!