I'd think that +7 on 169s would be a little far forward. I've got 189s mounted at +5, and I always wish that they were at +2 or 3 in heavy crud and pow (actually, I just wish the skis were about seven or eight cms longer, but that's not gonna happen). The up side of having a more forward mount is you can land switch in any snow condition. To get an accurate answer though, tell us your height, weight and what percentage of each kind of condition you'll be skiing (park, pow, crud, groomers, bulletproof ice, etc).